Vendor go-serial.

vendor/github.com/mikepb/go-serial/README.md

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+# Go Serial
+
+[![GoDoc](https://godoc.org/github.com/mikepb/go-serial?status.svg)](https://godoc.org/github.com/mikepb/go-serial)
+
+Package serial provides a binding to libserialport for serial port
+functionality. Serial ports are commonly used with embedded systems,
+such as the Arduino platform.
+
+## Usage
+
+```go
+package main
+
+import (
+  "github.com/mikepb/go-serial"
+  "log"
+)
+
+func main() {
+  options := serial.RawOptions
+  options.BitRate = 115200
+  p, err := options.Open("/dev/tty")
+  if err != nil {
+    log.Panic(err)
+  }
+
+  defer p.Close()
+
+  buf := make([]byte, 1)
+  if c, err := p.Read(buf); err != nil {
+    log.Panic(err)
+  } else {
+    log.Println(buf)
+  }
+}
+```
+
+## Documentation
+
+https://godoc.org/github.com/mikepb/go-serial
+
+
+## License
+
+    Copyright 2014 Michael Phan-Ba
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+Files from the libserialport library are licensed under the GNU Lesser General
+Public License. These files include in the header the notice that follows.
+
+    This file is part of the libserialport project.
+
+    Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
+    Copyright (C) 2010-2012 Uwe Hermann <uwe@hermann-uwe.de>
+    Copyright (C) 2013-2014 Martin Ling <martin-libserialport@earth.li>
+    Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz>
+    Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as
+    published by the Free Software Foundation, either version 3 of the
+    License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.

vendor/github.com/mikepb/go-serial/libserialport_internal.h

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+/*
+ * This file is part of the libserialport project.
+ *
+ * Copyright (C) 2014 Martin Ling <martin-libserialport@earth.li>
+ * Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef __linux__
+#define _BSD_SOURCE // for timeradd, timersub, timercmp
+#endif
+
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdarg.h>
+#ifdef _WIN32
+#include <windows.h>
+#include <tchar.h>
+#include <setupapi.h>
+#include <cfgmgr32.h>
+#undef DEFINE_GUID
+#define DEFINE_GUID(name,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8) \
+	static const GUID name = { l,w1,w2,{ b1,b2,b3,b4,b5,b6,b7,b8 } }
+#include <usbioctl.h>
+#include <usbiodef.h>
+#else
+#include <limits.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <limits.h>
+#include <poll.h>
+#endif
+#ifdef __APPLE__
+#include <CoreFoundation/CoreFoundation.h>
+#include <IOKit/IOKitLib.h>
+#include <IOKit/serial/IOSerialKeys.h>
+#include <IOKit/serial/ioss.h>
+#include <sys/syslimits.h>
+#endif
+#ifdef __linux__
+#include <dirent.h>
+#ifndef __ANDROID__
+#include "linux/serial.h"
+#endif
+#include "linux_termios.h"
+
+/* TCGETX/TCSETX is not available everywhere. */
+#if defined(TCGETX) && defined(TCSETX) && defined(HAVE_TERMIOX)
+#define USE_TERMIOX
+#endif
+#endif
+
+/* TIOCINQ/TIOCOUTQ is not available everywhere. */
+#if !defined(TIOCINQ) && defined(FIONREAD)
+#define TIOCINQ FIONREAD
+#endif
+#if !defined(TIOCOUTQ) && defined(FIONWRITE)
+#define TIOCOUTQ FIONWRITE
+#endif
+
+/* Non-standard baudrates are not available everywhere. */
+#if (defined(HAVE_TERMIOS_SPEED) || defined(HAVE_TERMIOS2_SPEED)) && defined(HAVE_BOTHER)
+#define USE_TERMIOS_SPEED
+#endif
+
+struct sp_port {
+	char *name;
+	char *description;
+	enum sp_transport transport;
+	int usb_bus;
+	int usb_address;
+	int usb_vid;
+	int usb_pid;
+	char *usb_manufacturer;
+	char *usb_product;
+	char *usb_serial;
+	char *bluetooth_address;
+#ifdef _WIN32
+	char *usb_path;
+	HANDLE hdl;
+	COMMTIMEOUTS timeouts;
+	OVERLAPPED write_ovl;
+	OVERLAPPED read_ovl;
+	OVERLAPPED wait_ovl;
+	DWORD events;
+	BYTE pending_byte;
+	BOOL writing;
+#else
+	int fd;
+#endif
+};
+
+struct sp_port_config {
+	int baudrate;
+	int bits;
+	enum sp_parity parity;
+	int stopbits;
+	enum sp_rts rts;
+	enum sp_cts cts;
+	enum sp_dtr dtr;
+	enum sp_dsr dsr;
+	enum sp_xonxoff xon_xoff;
+};
+
+struct port_data {
+#ifdef _WIN32
+	DCB dcb;
+#else
+	struct termios term;
+	int controlbits;
+	int termiox_supported;
+	int rts_flow;
+	int cts_flow;
+	int dtr_flow;
+	int dsr_flow;
+#endif
+};
+
+#ifdef _WIN32
+typedef HANDLE event_handle;
+#else
+typedef int event_handle;
+#endif
+
+/* Standard baud rates. */
+#ifdef _WIN32
+#define BAUD_TYPE DWORD
+#define BAUD(n) {CBR_##n, n}
+#else
+#define BAUD_TYPE speed_t
+#define BAUD(n) {B##n, n}
+#endif
+
+struct std_baudrate {
+	BAUD_TYPE index;
+	int value;
+};
+
+extern const struct std_baudrate std_baudrates[];
+
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
+#define NUM_STD_BAUDRATES ARRAY_SIZE(std_baudrates)
+
+extern void (*sp_debug_handler)(const char *format, ...);
+
+/* Debug output macros. */
+#define DEBUG_FMT(fmt, ...) do { \
+	if (sp_debug_handler) \
+		sp_debug_handler(fmt ".\n", __VA_ARGS__); \
+} while (0)
+#define DEBUG(msg) DEBUG_FMT(msg, NULL)
+#define DEBUG_ERROR(err, msg) DEBUG_FMT("%s returning " #err ": " msg, __func__)
+#define DEBUG_FAIL(msg) do {               \
+	char *errmsg = sp_last_error_message(); \
+	DEBUG_FMT("%s returning SP_ERR_FAIL: " msg ": %s", __func__, errmsg); \
+	sp_free_error_message(errmsg); \
+} while (0);
+#define RETURN() do { \
+	DEBUG_FMT("%s returning", __func__); \
+	return; \
+} while(0)
+#define RETURN_CODE(x) do { \
+	DEBUG_FMT("%s returning " #x, __func__); \
+	return x; \
+} while (0)
+#define RETURN_CODEVAL(x) do { \
+	switch (x) { \
+		case SP_OK: RETURN_CODE(SP_OK); \
+		case SP_ERR_ARG: RETURN_CODE(SP_ERR_ARG); \
+		case SP_ERR_FAIL: RETURN_CODE(SP_ERR_FAIL); \
+		case SP_ERR_MEM: RETURN_CODE(SP_ERR_MEM); \
+		case SP_ERR_SUPP: RETURN_CODE(SP_ERR_SUPP); \
+	} \
+} while (0)
+#define RETURN_OK() RETURN_CODE(SP_OK);
+#define RETURN_ERROR(err, msg) do { \
+	DEBUG_ERROR(err, msg); \
+	return err; \
+} while (0)
+#define RETURN_FAIL(msg) do { \
+	DEBUG_FAIL(msg); \
+	return SP_ERR_FAIL; \
+} while (0)
+#define RETURN_INT(x) do { \
+	int _x = x; \
+	DEBUG_FMT("%s returning %d", __func__, _x); \
+	return _x; \
+} while (0)
+#define RETURN_STRING(x) do { \
+	char *_x = x; \
+	DEBUG_FMT("%s returning %s", __func__, _x); \
+	return _x; \
+} while (0)
+#define RETURN_POINTER(x) do { \
+	void *_x = x; \
+	DEBUG_FMT("%s returning %p", __func__, _x); \
+	return _x; \
+} while (0)
+#define SET_ERROR(val, err, msg) do { DEBUG_ERROR(err, msg); val = err; } while (0)
+#define SET_FAIL(val, msg) do { DEBUG_FAIL(msg); val = SP_ERR_FAIL; } while (0)
+#define TRACE(fmt, ...) DEBUG_FMT("%s(" fmt ") called", __func__, __VA_ARGS__)
+#define TRACE_VOID() DEBUG_FMT("%s() called", __func__)
+
+#define TRY(x) do { int ret = x; if (ret != SP_OK) RETURN_CODEVAL(ret); } while (0)
+
+SP_PRIV struct sp_port **list_append(struct sp_port **list, const char *portname);
+
+/* OS-specific Helper functions. */
+SP_PRIV enum sp_return get_port_details(struct sp_port *port);
+SP_PRIV enum sp_return list_ports(struct sp_port ***list);

vendor/github.com/mikepb/go-serial/linux.c

@@ -0,0 +1,226 @@
+/*
+ * This file is part of the libserialport project.
+ *
+ * Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef __linux__
+
+#include "libserialport.h"
+#include "libserialport_internal.h"
+
+SP_PRIV enum sp_return get_port_details(struct sp_port *port)
+{
+	/* Description limited to 127 char,
+	   anything longer would not be user friendly anyway */
+	char description[128];
+	int bus, address;
+	unsigned int vid, pid;
+	char manufacturer[128], product[128], serial[128];
+	char baddr[32];
+	const char dir_name[] = "/sys/class/tty/%s/device/%s%s";
+	char sub_dir[32] = "", file_name[PATH_MAX];
+	char *ptr, *dev = port->name + 5;
+	FILE *file;
+	int i, count;
+
+	if (strncmp(port->name, "/dev/", 5))
+		RETURN_ERROR(SP_ERR_ARG, "Device name not recognized.");
+
+	snprintf(file_name, sizeof(file_name), "/sys/class/tty/%s", dev);
+	count = readlink(file_name, file_name, sizeof(file_name));
+	if (count <= 0 || count >= (int) sizeof(file_name)-1)
+		RETURN_ERROR(SP_ERR_ARG, "Device not found.");
+	file_name[count] = 0;
+	if (strstr(file_name, "bluetooth"))
+		port->transport = SP_TRANSPORT_BLUETOOTH;
+	else if (strstr(file_name, "usb"))
+		port->transport = SP_TRANSPORT_USB;
+
+	if (port->transport == SP_TRANSPORT_USB) {
+		for (i=0; i<5; i++) {
+			strcat(sub_dir, "../");
+
+			snprintf(file_name, sizeof(file_name), dir_name, dev, sub_dir, "busnum");
+			if (!(file = fopen(file_name, "r")))
+				continue;
+			count = fscanf(file, "%d", &bus);
+			fclose(file);
+			if (count != 1)
+				continue;
+
+			snprintf(file_name, sizeof(file_name), dir_name, dev, sub_dir, "devnum");
+			if (!(file = fopen(file_name, "r")))
+				continue;
+			count = fscanf(file, "%d", &address);
+			fclose(file);
+			if (count != 1)
+				continue;
+
+			snprintf(file_name, sizeof(file_name), dir_name, dev, sub_dir, "idVendor");
+			if (!(file = fopen(file_name, "r")))
+				continue;
+			count = fscanf(file, "%4x", &vid);
+			fclose(file);
+			if (count != 1)
+				continue;
+
+			snprintf(file_name, sizeof(file_name), dir_name, dev, sub_dir, "idProduct");
+			if (!(file = fopen(file_name, "r")))
+				continue;
+			count = fscanf(file, "%4x", &pid);
+			fclose(file);
+			if (count != 1)
+				continue;
+
+			port->usb_bus = bus;
+			port->usb_address = address;
+			port->usb_vid = vid;
+			port->usb_pid = pid;
+
+			snprintf(file_name, sizeof(file_name), dir_name, dev, sub_dir, "product");
+			if ((file = fopen(file_name, "r"))) {
+				if ((ptr = fgets(description, sizeof(description), file))) {
+					ptr = description + strlen(description) - 1;
+					if (ptr >= description && *ptr == '\n')
+						*ptr = 0;
+					port->description = strdup(description);
+				}
+				fclose(file);
+			}
+			if (!file || !ptr)
+				port->description = strdup(dev);
+
+			snprintf(file_name, sizeof(file_name), dir_name, dev, sub_dir, "manufacturer");
+			if ((file = fopen(file_name, "r"))) {
+				if ((ptr = fgets(manufacturer, sizeof(manufacturer), file))) {
+					ptr = manufacturer + strlen(manufacturer) - 1;
+					if (ptr >= manufacturer && *ptr == '\n')
+						*ptr = 0;
+					port->usb_manufacturer = strdup(manufacturer);
+				}
+				fclose(file);
+			}
+
+			snprintf(file_name, sizeof(file_name), dir_name, dev, sub_dir, "product");
+			if ((file = fopen(file_name, "r"))) {
+				if ((ptr = fgets(product, sizeof(product), file))) {
+					ptr = product + strlen(product) - 1;
+					if (ptr >= product && *ptr == '\n')
+						*ptr = 0;
+					port->usb_product = strdup(product);
+				}
+				fclose(file);
+			}
+
+			snprintf(file_name, sizeof(file_name), dir_name, dev, sub_dir, "serial");
+			if ((file = fopen(file_name, "r"))) {
+				if ((ptr = fgets(serial, sizeof(serial), file))) {
+					ptr = serial + strlen(serial) - 1;
+					if (ptr >= serial && *ptr == '\n')
+						*ptr = 0;
+					port->usb_serial = strdup(serial);
+				}
+				fclose(file);
+			}
+
+			break;
+		}
+	} else {
+		port->description = strdup(dev);
+
+		if (port->transport == SP_TRANSPORT_BLUETOOTH) {
+			snprintf(file_name, sizeof(file_name), dir_name, dev, "", "address");
+			if ((file = fopen(file_name, "r"))) {
+				if ((ptr = fgets(baddr, sizeof(baddr), file))) {
+					ptr = baddr + strlen(baddr) - 1;
+					if (ptr >= baddr && *ptr == '\n')
+						*ptr = 0;
+					port->bluetooth_address = strdup(baddr);
+				}
+				fclose(file);
+			}
+		}
+	}
+
+	RETURN_OK();
+}
+
+SP_PRIV enum sp_return list_ports(struct sp_port ***list)
+{
+	char name[PATH_MAX], target[PATH_MAX];
+	struct dirent entry, *result;
+#ifdef HAVE_SERIAL_STRUCT
+	struct serial_struct serial_info;
+	int ioctl_result;
+#endif
+	char buf[sizeof(entry.d_name) + 16];
+	int len, fd;
+	DIR *dir;
+	int ret = SP_OK;
+
+	DEBUG("Enumerating tty devices");
+	if (!(dir = opendir("/sys/class/tty")))
+		RETURN_FAIL("could not open /sys/class/tty");
+
+	DEBUG("Iterating over results");
+	while (!readdir_r(dir, &entry, &result) && result) {
+		snprintf(buf, sizeof(buf), "/sys/class/tty/%s", entry.d_name);
+		len = readlink(buf, target, sizeof(target));
+		if (len <= 0 || len >= (int) sizeof(target)-1)
+			continue;
+		target[len] = 0;
+		if (strstr(target, "virtual"))
+			continue;
+		snprintf(name, sizeof(name), "/dev/%s", entry.d_name);
+		DEBUG_FMT("Found device %s", name);
+		if (strstr(target, "serial8250")) {
+			/* The serial8250 driver has a hardcoded number of ports.
+			 * The only way to tell which actually exist on a given system
+			 * is to try to open them and make an ioctl call. */
+			DEBUG("serial8250 device, attempting to open");
+			if ((fd = open(name, O_RDWR | O_NONBLOCK | O_NOCTTY)) < 0) {
+				DEBUG("open failed, skipping");
+				continue;
+			}
+#ifdef HAVE_SERIAL_STRUCT
+			ioctl_result = ioctl(fd, TIOCGSERIAL, &serial_info);
+#endif
+			close(fd);
+#ifdef HAVE_SERIAL_STRUCT
+			if (ioctl_result != 0) {
+				DEBUG("ioctl failed, skipping");
+				continue;
+			}
+			if (serial_info.type == PORT_UNKNOWN) {
+				DEBUG("port type is unknown, skipping");
+				continue;
+			}
+#endif
+		}
+		DEBUG_FMT("Found port %s", name);
+		*list = list_append(*list, name);
+		if (!list) {
+			SET_ERROR(ret, SP_ERR_MEM, "list append failed");
+			break;
+		}
+	}
+	closedir(dir);
+
+	return ret;
+}
+
+#endif

vendor/github.com/mikepb/go-serial/linux_termios.c

@@ -0,0 +1,132 @@
+/*
+ * This file is part of the libserialport project.
+ *
+ * Copyright (C) 2013 Martin Ling <martin-libserialport@earth.li>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * At the time of writing, glibc does not support the Linux kernel interfaces
+ * for setting non-standard baud rates and flow control. We therefore have to
+ * prepare the correct ioctls ourselves, for which we need the declarations in
+ * linux/termios.h.
+ *
+ * We can't include linux/termios.h in serialport.c however, because its
+ * contents conflict with the termios.h provided by glibc. So this file exists
+ * to isolate the bits of code which use the kernel termios declarations.
+ *
+ * The details vary by architecture. Some architectures have c_ispeed/c_ospeed
+ * in struct termios, accessed with TCSETS/TCGETS. Others have these fields in
+ * struct termios2, accessed with TCSETS2/TCGETS2. Some architectures have the
+ * TCSETX/TCGETX ioctls used with struct termiox, others do not.
+ */
+
+#ifdef __linux__
+
+#include <stdlib.h>
+#include <linux/termios.h>
+#include "linux_termios.h"
+
+SP_PRIV unsigned long get_termios_get_ioctl(void)
+{
+#ifdef HAVE_TERMIOS2
+	return TCGETS2;
+#else
+	return TCGETS;
+#endif
+}
+
+SP_PRIV unsigned long get_termios_set_ioctl(void)
+{
+#ifdef HAVE_TERMIOS2
+	return TCSETS2;
+#else
+	return TCSETS;
+#endif
+}
+
+SP_PRIV size_t get_termios_size(void)
+{
+#ifdef HAVE_TERMIOS2
+	return sizeof(struct termios2);
+#else
+	return sizeof(struct termios);
+#endif
+}
+
+#if (defined(HAVE_TERMIOS_SPEED) || defined(HAVE_TERMIOS2_SPEED)) && defined(HAVE_BOTHER)
+SP_PRIV int get_termios_speed(void *data)
+{
+#ifdef HAVE_TERMIOS2
+	struct termios2 *term = (struct termios2 *) data;
+#else
+	struct termios *term = (struct termios *) data;
+#endif
+	if (term->c_ispeed != term->c_ospeed)
+		return -1;
+	else
+		return term->c_ispeed;
+}
+
+SP_PRIV void set_termios_speed(void *data, int speed)
+{
+#ifdef HAVE_TERMIOS2
+	struct termios2 *term = (struct termios2 *) data;
+#else
+	struct termios *term = (struct termios *) data;
+#endif
+	term->c_cflag &= ~CBAUD;
+	term->c_cflag |= BOTHER;
+	term->c_ispeed = term->c_ospeed = speed;
+}
+#endif
+
+#ifdef HAVE_TERMIOX
+SP_PRIV size_t get_termiox_size(void)
+{
+	return sizeof(struct termiox);
+}
+
+SP_PRIV int get_termiox_flow(void *data, int *rts, int *cts, int *dtr, int *dsr)
+{
+	struct termiox *termx = (struct termiox *) data;
+	int flags = 0;
+
+	*rts = (termx->x_cflag & RTSXOFF);
+	*cts = (termx->x_cflag & CTSXON);
+	*dtr = (termx->x_cflag & DTRXOFF);
+	*dsr = (termx->x_cflag & DSRXON);
+
+	return flags;
+}
+
+SP_PRIV void set_termiox_flow(void *data, int rts, int cts, int dtr, int dsr)
+{
+	struct termiox *termx = (struct termiox *) data;
+
+	termx->x_cflag &= ~(RTSXOFF | CTSXON | DTRXOFF | DSRXON);
+
+	if (rts)
+		termx->x_cflag |= RTSXOFF;
+	if (cts)
+		termx->x_cflag |= CTSXON;
+	if (dtr)
+		termx->x_cflag |= DTRXOFF;
+	if (dsr)
+		termx->x_cflag |= DSRXON;
+}
+#endif
+
+#endif

vendor/github.com/mikepb/go-serial/linux_termios.h

@@ -0,0 +1,38 @@
+/*
+ * This file is part of the libserialport project.
+ *
+ * Copyright (C) 2013 Martin Ling <martin-libserialport@earth.li>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef __linux__
+
+#ifndef LIBSERIALPORT_LINUX_TERMIOS_H
+#define LIBSERIALPORT_LINUX_TERMIOS_H
+
+#include <stdlib.h>
+
+SP_PRIV unsigned long get_termios_get_ioctl(void);
+SP_PRIV unsigned long get_termios_set_ioctl(void);
+SP_PRIV size_t get_termios_size(void);
+SP_PRIV int get_termios_speed(void *data);
+SP_PRIV void set_termios_speed(void *data, int speed);
+SP_PRIV size_t get_termiox_size(void);
+SP_PRIV int get_termiox_flow(void *data, int *rts, int *cts, int *dtr, int *dsr);
+SP_PRIV void set_termiox_flow(void *data, int rts, int cts, int dtr, int dsr);
+
+#endif
+
+#endif

vendor/github.com/mikepb/go-serial/listports/listports.go

@@ -0,0 +1,213 @@
+package main
+
+import (
+	".."
+	"log"
+	"time"
+)
+
+func main() {
+	ports, err := serial.ListPorts()
+	if err != nil {
+		log.Panic(err)
+	}
+
+	log.Printf("Found %d ports:\n", len(ports))
+
+	for _, info := range ports {
+		log.Println(info.Name())
+		log.Println("\tName:", info.Name())
+		log.Println("\tDescription:", info.Description())
+		log.Println("\tTransport:", info.Transport())
+
+		if bus, addr, err := info.USBBusAddress(); err != nil {
+			log.Println("\tbus:", bus, "\taddr:", addr)
+		} else {
+			log.Println(err)
+		}
+
+		if vid, pid, err := info.USBVIDPID(); err != nil {
+			log.Println("\tvid:", vid, "\tpid:", pid)
+		} else {
+			log.Println(err)
+		}
+
+		log.Println("\tUSB Manufacturer:", info.USBManufacturer())
+		log.Println("\tUSB Product:", info.USBProduct())
+		log.Println("\tUSB Serial Number:", info.USBSerialNumber())
+		log.Println("\tBluetooth Address:", info.BluetoothAddress())
+
+		port, err := info.Open()
+		if err != nil {
+			log.Println("\tOpen:", err)
+			continue
+		}
+
+		log.Println("\tLocalAddr:", port.LocalAddr().String())
+		log.Println("\tRemoteAddr:", port.RemoteAddr().String())
+
+		if bitrate, err := port.BitRate(); err != nil {
+			log.Println("\tBit Rate:", err)
+		} else {
+			log.Println("\tBit Rate:", bitrate)
+		}
+
+		if databits, err := port.DataBits(); err != nil {
+			log.Println("\tData Bits:", err)
+		} else {
+			log.Println("\tData Bits:", databits)
+		}
+
+		if parity, err := port.Parity(); err != nil {
+			log.Println("\tParity:", err)
+		} else {
+			log.Println("\tParity:", parity)
+		}
+
+		if stopbits, err := port.StopBits(); err != nil {
+			log.Println("\tStop Bits:", err)
+		} else {
+			log.Println("\tStop Bits:", stopbits)
+		}
+
+		if rts, err := port.RTS(); err != nil {
+			log.Println("\tRTS:", err)
+		} else {
+			log.Println("\tRTS:", rts)
+		}
+
+		if cts, err := port.CTS(); err != nil {
+			log.Println("\tCTS:", err)
+		} else {
+			log.Println("\tCTS:", cts)
+		}
+
+		if dtr, err := port.DTR(); err != nil {
+			log.Println("\tDTR:", err)
+		} else {
+			log.Println("\tDTR:", dtr)
+		}
+
+		if dsr, err := port.DSR(); err != nil {
+			log.Println("\tDSR:", err)
+		} else {
+			log.Println("\tDSR:", dsr)
+		}
+
+		if xon, err := port.XonXoff(); err != nil {
+			log.Println("\tXON/XOFF:", err)
+		} else {
+			log.Println("\tXON/XOFF:", xon)
+		}
+
+		/*
+			if err := port.Apply(&serial.RawOptions); err != nil {
+				log.Println("\tApply Raw Config:", err)
+			} else {
+				log.Println("\tApply Raw Config: ok")
+			}
+		*/
+
+		if b, err := port.InputWaiting(); err != nil {
+			log.Println("\tInput Waiting: ", err)
+		} else {
+			log.Println("\tInput Waiting: ", b)
+		}
+
+		if b, err := port.OutputWaiting(); err != nil {
+			log.Println("\tOutput Waiting: ", err)
+		} else {
+			log.Println("\tOutput Waiting: ", b)
+		}
+
+		if err := port.Sync(); err != nil {
+			log.Println("\tSync: ", err)
+		}
+		if err := port.Reset(); err != nil {
+			log.Println("\tReset: ", err)
+		}
+		if err := port.ResetInput(); err != nil {
+			log.Println("\tReset input: ", err)
+		}
+		if err := port.ResetOutput(); err != nil {
+			log.Println("\tReset output: ", err)
+		}
+
+		buf := make([]byte, 1)
+
+		if err := port.SetDeadline(time.Now()); err != nil {
+			log.Println("\tSetDeadline: ", err)
+		} else {
+			log.Printf("\tSet deadline")
+		}
+
+		if c, err := port.Read(buf); err != nil {
+			log.Printf("\tRead immediate %d: %v", c, err)
+			if err != serial.ErrTimeout {
+				continue
+			}
+		} else {
+			log.Printf("\tRead immediate %d: %v", c, buf)
+		}
+
+		if c, err := port.Write([]byte{0}); err != nil {
+			log.Println("\tWrite immediate:", err)
+			if err != serial.ErrTimeout {
+				continue
+			}
+		} else {
+			log.Printf("\tWrite immediate %d: %v", c, buf)
+		}
+
+		if err := port.SetDeadline(time.Now().Add(time.Millisecond)); err != nil {
+			log.Println("\tSetDeadline: ", err)
+		} else {
+			log.Printf("\tSet deadline")
+		}
+
+		if c, err := port.Read(buf); err != nil {
+			log.Printf("\tRead wait %d: %v", c, err)
+		} else {
+			log.Printf("\tRead wait %d: %v", c, buf)
+		}
+
+		if err := port.SetDeadline(time.Now().Add(time.Millisecond)); err != nil {
+			log.Println("\tSetDeadline: ", err)
+		} else {
+			log.Printf("\tSet deadline")
+		}
+
+		if c, err := port.Write([]byte{0}); err != nil {
+			log.Println("\tWrite wait:", err)
+		} else {
+			log.Printf("\tWrite wait %d: %v", c, buf)
+		}
+
+		if err := port.SetReadDeadline(time.Time{}); err != nil {
+			log.Println("\tSetReadDeadline: ", err)
+		} else {
+			log.Printf("\tSet read deadline")
+		}
+		if err := port.SetWriteDeadline(time.Time{}); err != nil {
+			log.Println("\tSetWriteDeadline: ", err)
+		} else {
+			log.Printf("\tSet write deadline")
+		}
+
+		if c, err := port.Read(buf); err != nil {
+			log.Printf("\tRead %d: %v", c, err)
+		} else {
+			log.Printf("\tRead %d: %v", c, buf)
+		}
+
+		if c, err := port.Write([]byte{0}); err != nil {
+			log.Println("\tWrite:", err)
+		} else {
+			log.Printf("\tWrite %d: %v", c, buf)
+		}
+
+		if err := port.Close(); err != nil {
+			log.Println(err)
+		}
+	}
+}

vendor/github.com/mikepb/go-serial/macosx.c

@@ -0,0 +1,229 @@
+/*
+ * This file is part of the libserialport project.
+ *
+ * Copyright (C) 2013-2014 Martin Ling <martin-libserialport@earth.li>
+ * Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef __APPLE__
+
+#include "libserialport.h"
+#include "libserialport_internal.h"
+
+SP_PRIV enum sp_return get_port_details(struct sp_port *port)
+{
+	/* Description limited to 127 char,
+	   anything longer would not be user friendly anyway */
+	char description[128];
+	int bus, address, vid, pid = -1;
+	char manufacturer[128], product[128], serial[128];
+	CFMutableDictionaryRef classes;
+	io_iterator_t iter;
+	io_object_t ioport, ioparent;
+	CFTypeRef cf_property, cf_bus, cf_address, cf_vendor, cf_product;
+	Boolean result;
+	char path[PATH_MAX], class[16];
+
+	DEBUG("Getting serial port list");
+	if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue)))
+		RETURN_FAIL("IOServiceMatching() failed");
+
+	if (IOServiceGetMatchingServices(kIOMasterPortDefault, classes,
+	                                 &iter) != KERN_SUCCESS)
+		RETURN_FAIL("IOServiceGetMatchingServices() failed");
+
+	DEBUG("Iterating over results");
+	while ((ioport = IOIteratorNext(iter))) {
+		if (!(cf_property = IORegistryEntryCreateCFProperty(ioport,
+		            CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0))) {
+			IOObjectRelease(ioport);
+			continue;
+		}
+		result = CFStringGetCString(cf_property, path, sizeof(path),
+		                            kCFStringEncodingASCII);
+		CFRelease(cf_property);
+		if (!result || strcmp(path, port->name)) {
+			IOObjectRelease(ioport);
+			continue;
+		}
+		DEBUG_FMT("Found port %s", path);
+
+		IORegistryEntryGetParentEntry(ioport, kIOServicePlane, &ioparent);
+		if ((cf_property=IORegistryEntrySearchCFProperty(ioparent,kIOServicePlane,
+		           CFSTR("IOProviderClass"), kCFAllocatorDefault,
+		           kIORegistryIterateRecursively | kIORegistryIterateParents))) {
+			if (CFStringGetCString(cf_property, class, sizeof(class),
+			                       kCFStringEncodingASCII) &&
+			    strstr(class, "USB")) {
+				DEBUG("Found USB class device");
+				port->transport = SP_TRANSPORT_USB;
+			}
+			CFRelease(cf_property);
+		}
+		IOObjectRelease(ioparent);
+
+		if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane,
+		         CFSTR("USB Interface Name"), kCFAllocatorDefault,
+		         kIORegistryIterateRecursively | kIORegistryIterateParents)) ||
+		    (cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane,
+		         CFSTR("USB Product Name"), kCFAllocatorDefault,
+		         kIORegistryIterateRecursively | kIORegistryIterateParents)) ||
+		    (cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane,
+		         CFSTR("Product Name"), kCFAllocatorDefault,
+		         kIORegistryIterateRecursively | kIORegistryIterateParents)) ||
+		    (cf_property = IORegistryEntryCreateCFProperty(ioport,
+		         CFSTR(kIOTTYDeviceKey), kCFAllocatorDefault, 0))) {
+			if (CFStringGetCString(cf_property, description, sizeof(description),
+			                       kCFStringEncodingASCII)) {
+				DEBUG_FMT("Found description %s", description);
+				port->description = strdup(description);
+			}
+			CFRelease(cf_property);
+		} else {
+			DEBUG("No description for this device");
+		}
+
+		cf_bus = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane,
+		                                         CFSTR("USBBusNumber"),
+		                                         kCFAllocatorDefault,
+		                                         kIORegistryIterateRecursively
+		                                         | kIORegistryIterateParents);
+		cf_address = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane,
+		                                         CFSTR("USB Address"),
+		                                         kCFAllocatorDefault,
+		                                         kIORegistryIterateRecursively
+		                                         | kIORegistryIterateParents);
+		if (cf_bus && cf_address &&
+		    CFNumberGetValue(cf_bus    , kCFNumberIntType, &bus) &&
+		    CFNumberGetValue(cf_address, kCFNumberIntType, &address)) {
+			DEBUG_FMT("Found matching USB bus:address %03d:%03d", bus, address);
+			port->usb_bus = bus;
+			port->usb_address = address;
+		}
+		if (cf_bus    )  CFRelease(cf_bus);
+		if (cf_address)  CFRelease(cf_address);
+
+		cf_vendor = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane,
+		                                         CFSTR("idVendor"),
+		                                         kCFAllocatorDefault,
+		                                         kIORegistryIterateRecursively
+		                                         | kIORegistryIterateParents);
+		cf_product = IORegistryEntrySearchCFProperty(ioport, kIOServicePlane,
+		                                         CFSTR("idProduct"),
+		                                         kCFAllocatorDefault,
+		                                         kIORegistryIterateRecursively
+		                                         | kIORegistryIterateParents);
+		if (cf_vendor && cf_product &&
+		    CFNumberGetValue(cf_vendor , kCFNumberIntType, &vid) &&
+		    CFNumberGetValue(cf_product, kCFNumberIntType, &pid)) {
+			DEBUG_FMT("Found matching USB vid:pid %04X:%04X", vid, pid);
+			port->usb_vid = vid;
+			port->usb_pid = pid;
+		}
+		if (cf_vendor )  CFRelease(cf_vendor);
+		if (cf_product)  CFRelease(cf_product);
+
+		if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane,
+		         CFSTR("USB Vendor Name"), kCFAllocatorDefault,
+		         kIORegistryIterateRecursively | kIORegistryIterateParents))) {
+			if (CFStringGetCString(cf_property, manufacturer, sizeof(manufacturer),
+			                       kCFStringEncodingASCII)) {
+				DEBUG_FMT("Found manufacturer %s", manufacturer);
+				port->usb_manufacturer = strdup(manufacturer);
+			}
+			CFRelease(cf_property);
+		}
+
+		if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane,
+		         CFSTR("USB Product Name"), kCFAllocatorDefault,
+		         kIORegistryIterateRecursively | kIORegistryIterateParents))) {
+			if (CFStringGetCString(cf_property, product, sizeof(product),
+			                       kCFStringEncodingASCII)) {
+				DEBUG_FMT("Found product name %s", product);
+				port->usb_product = strdup(product);
+			}
+			CFRelease(cf_property);
+		}
+
+		if ((cf_property = IORegistryEntrySearchCFProperty(ioport,kIOServicePlane,
+		         CFSTR("USB Serial Number"), kCFAllocatorDefault,
+		         kIORegistryIterateRecursively | kIORegistryIterateParents))) {
+			if (CFStringGetCString(cf_property, serial, sizeof(serial),
+			                       kCFStringEncodingASCII)) {
+				DEBUG_FMT("Found serial number %s", serial);
+				port->usb_serial = strdup(serial);
+			}
+			CFRelease(cf_property);
+		}
+
+		IOObjectRelease(ioport);
+		break;
+	}
+	IOObjectRelease(iter);
+
+	RETURN_OK();
+}
+
+SP_PRIV enum sp_return list_ports(struct sp_port ***list)
+{
+	CFMutableDictionaryRef classes;
+	io_iterator_t iter;
+	char path[PATH_MAX];
+	io_object_t port;
+	CFTypeRef cf_path;
+	Boolean result;
+	int ret = SP_OK;
+
+	DEBUG("Creating matching dictionary");
+	if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue))) {
+		SET_FAIL(ret, "IOServiceMatching() failed");
+		goto out_done;
+	}
+
+	DEBUG("Getting matching services");
+	if (IOServiceGetMatchingServices(kIOMasterPortDefault, classes,
+	                                 &iter) != KERN_SUCCESS) {
+		SET_FAIL(ret, "IOServiceGetMatchingServices() failed");
+		goto out_done;
+	}
+
+	DEBUG("Iterating over results");
+	while ((port = IOIteratorNext(iter))) {
+		cf_path = IORegistryEntryCreateCFProperty(port,
+				CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0);
+		if (cf_path) {
+			result = CFStringGetCString(cf_path, path, sizeof(path),
+			                            kCFStringEncodingASCII);
+			CFRelease(cf_path);
+			if (result) {
+				DEBUG_FMT("Found port %s", path);
+				if (!(*list = list_append(*list, path))) {
+					SET_ERROR(ret, SP_ERR_MEM, "list append failed");
+					IOObjectRelease(port);
+					goto out;
+				}
+			}
+		}
+		IOObjectRelease(port);
+	}
+out:
+	IOObjectRelease(iter);
+out_done:
+
+	return ret;
+}
+
+#endif

vendor/github.com/mikepb/go-serial/windows.c

@@ -0,0 +1,542 @@
+/*
+ * This file is part of the libserialport project.
+ *
+ * Copyright (C) 2013-2014 Martin Ling <martin-libserialport@earth.li>
+ * Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef _WIN32
+
+#include "libserialport.h"
+#include "libserialport_internal.h"
+
+/* USB path is a string of at most 8 decimal numbers < 128 separated by dots */
+#define MAX_USB_PATH  (8*3 + 7*1 + 1)
+
+static void enumerate_hub(struct sp_port *port, char *hub_name,
+                          char *parent_path);
+
+static char *wc_to_utf8(PWCHAR wc_buffer, ULONG size)
+{
+	WCHAR wc_str[size/sizeof(WCHAR)+1];
+	char *utf8_str;
+
+	/* zero terminate the wide char string */
+	memcpy(wc_str, wc_buffer, size);
+	wc_str[sizeof(wc_str)-1] = 0;
+
+	/* compute the size of the utf8 converted string */
+	if (!(size = WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, wc_str, -1,
+	                                 NULL, 0, NULL, NULL)))
+		return NULL;
+
+	/* allocate utf8 output buffer */
+	if (!(utf8_str = malloc(size)))
+		return NULL;
+
+	/* actually converted to utf8 */
+	if (!WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, wc_str, -1,
+	                         utf8_str, size, NULL, NULL)) {
+		free(utf8_str);
+		return NULL;
+	}
+
+	return utf8_str;
+}
+
+static char *get_root_hub_name(HANDLE host_controller)
+{
+	USB_ROOT_HUB_NAME  root_hub_name;
+	PUSB_ROOT_HUB_NAME root_hub_name_wc;
+	char *root_hub_name_utf8;
+	ULONG size = 0;
+
+	/* compute the size of the root hub name string */
+	if (!DeviceIoControl(host_controller, IOCTL_USB_GET_ROOT_HUB_NAME, 0, 0,
+	                     &root_hub_name, sizeof(root_hub_name), &size, NULL))
+		return NULL;
+
+	/* allocate wide char root hub name string */
+	size = root_hub_name.ActualLength;
+	if (!(root_hub_name_wc = malloc(size)))
+		return NULL;
+
+	/* actually get the root hub name string */
+	if (!DeviceIoControl(host_controller, IOCTL_USB_GET_ROOT_HUB_NAME,
+	                     NULL, 0, root_hub_name_wc, size, &size, NULL)) {
+		free(root_hub_name_wc);
+		return NULL;
+	}
+
+	/* convert the root hub name string to utf8 */
+	root_hub_name_utf8 = wc_to_utf8(root_hub_name_wc->RootHubName, size);
+	free(root_hub_name_wc);
+	return root_hub_name_utf8;
+}
+
+static char *get_external_hub_name(HANDLE hub, ULONG connection_index)
+{
+	USB_NODE_CONNECTION_NAME  ext_hub_name;
+	PUSB_NODE_CONNECTION_NAME ext_hub_name_wc;
+	char *ext_hub_name_utf8;
+	ULONG size;
+
+	/* compute the size of the external hub name string */
+	ext_hub_name.ConnectionIndex = connection_index;
+	if (!DeviceIoControl(hub, IOCTL_USB_GET_NODE_CONNECTION_NAME,
+	                     &ext_hub_name, sizeof(ext_hub_name),
+	                     &ext_hub_name, sizeof(ext_hub_name), &size, NULL))
+		return NULL;
+
+	/* allocate wide char external hub name string */
+	size = ext_hub_name.ActualLength;
+	if (size <= sizeof(ext_hub_name)
+	    || !(ext_hub_name_wc = malloc(size)))
+		return NULL;
+
+	/* get the name of the external hub attached to the specified port */
+	ext_hub_name_wc->ConnectionIndex = connection_index;
+	if (!DeviceIoControl(hub, IOCTL_USB_GET_NODE_CONNECTION_NAME,
+	                     ext_hub_name_wc, size,
+	                     ext_hub_name_wc, size, &size, NULL)) {
+		free(ext_hub_name_wc);
+		return NULL;
+	}
+
+	/* convert the external hub name string to utf8 */
+	ext_hub_name_utf8 = wc_to_utf8(ext_hub_name_wc->NodeName, size);
+	free(ext_hub_name_wc);
+	return ext_hub_name_utf8;
+}
+
+static char *get_string_descriptor(HANDLE hub_device, ULONG connection_index,
+                                   UCHAR descriptor_index)
+{
+	char desc_req_buf[sizeof(USB_DESCRIPTOR_REQUEST) +
+	                  MAXIMUM_USB_STRING_LENGTH] = { 0 };
+	PUSB_DESCRIPTOR_REQUEST desc_req = (void *) desc_req_buf;
+	PUSB_STRING_DESCRIPTOR  desc     = (void *) (desc_req + 1);
+	ULONG size = sizeof(desc_req_buf);
+
+	desc_req->ConnectionIndex     = connection_index;
+	desc_req->SetupPacket.wValue  = (USB_STRING_DESCRIPTOR_TYPE << 8)
+	                                | descriptor_index;
+	desc_req->SetupPacket.wIndex  = 0;
+	desc_req->SetupPacket.wLength = size - sizeof(*desc_req);
+
+	if (!DeviceIoControl(hub_device,
+	                     IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION,
+	                     desc_req, size, desc_req, size, &size, NULL)
+	    || size < 2
+	    || desc->bDescriptorType != USB_STRING_DESCRIPTOR_TYPE
+	    || desc->bLength != size - sizeof(*desc_req)
+	    || desc->bLength % 2)
+		return NULL;
+
+	return wc_to_utf8(desc->bString, desc->bLength);
+}
+
+static void enumerate_hub_ports(struct sp_port *port, HANDLE hub_device,
+                                ULONG nb_ports, char *parent_path)
+{
+	char path[MAX_USB_PATH];
+	ULONG index = 0;
+
+	for (index = 1; index <= nb_ports; index++) {
+		PUSB_NODE_CONNECTION_INFORMATION_EX connection_info_ex;
+		ULONG size = sizeof(*connection_info_ex) + 30*sizeof(USB_PIPE_INFO);
+
+		if (!(connection_info_ex = malloc(size)))
+			break;
+
+		connection_info_ex->ConnectionIndex = index;
+		if (!DeviceIoControl(hub_device,
+		                     IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX,
+		                     connection_info_ex, size,
+		                     connection_info_ex, size, &size, NULL)) {
+			/* try to get CONNECTION_INFORMATION if CONNECTION_INFORMATION_EX
+			   did not work */
+			PUSB_NODE_CONNECTION_INFORMATION connection_info;
+
+			size = sizeof(*connection_info) + 30*sizeof(USB_PIPE_INFO);
+			if (!(connection_info = malloc(size))) {
+				free(connection_info_ex);
+				continue;
+			}
+			connection_info->ConnectionIndex = index;
+			if (!DeviceIoControl(hub_device,
+			                     IOCTL_USB_GET_NODE_CONNECTION_INFORMATION,
+			                     connection_info, size,
+			                     connection_info, size, &size, NULL)) {
+				free(connection_info);
+				free(connection_info_ex);
+				continue;
+			}
+
+			connection_info_ex->ConnectionIndex = connection_info->ConnectionIndex;
+			connection_info_ex->DeviceDescriptor = connection_info->DeviceDescriptor;
+			connection_info_ex->DeviceIsHub = connection_info->DeviceIsHub;
+			connection_info_ex->DeviceAddress = connection_info->DeviceAddress;
+			free(connection_info);
+		}
+
+		if (connection_info_ex->DeviceIsHub) {
+			/* recursively enumerate external hub */
+			PCHAR ext_hub_name;
+			if ((ext_hub_name = get_external_hub_name(hub_device, index))) {
+				snprintf(path, sizeof(path), "%s%ld.",
+				         parent_path, connection_info_ex->ConnectionIndex);
+				enumerate_hub(port, ext_hub_name, path);
+			}
+			free(connection_info_ex);
+		} else {
+			snprintf(path, sizeof(path), "%s%ld",
+			         parent_path, connection_info_ex->ConnectionIndex);
+
+			/* check if this device is the one we search for */
+			if (strcmp(path, port->usb_path)) {
+				free(connection_info_ex);
+				continue;
+			}
+
+			/* finally grab detailed informations regarding the device */
+			port->usb_address = connection_info_ex->DeviceAddress + 1;
+			port->usb_vid = connection_info_ex->DeviceDescriptor.idVendor;
+			port->usb_pid = connection_info_ex->DeviceDescriptor.idProduct;
+
+			if (connection_info_ex->DeviceDescriptor.iManufacturer)
+				port->usb_manufacturer = get_string_descriptor(hub_device,index,
+				           connection_info_ex->DeviceDescriptor.iManufacturer);
+			if (connection_info_ex->DeviceDescriptor.iProduct)
+				port->usb_product = get_string_descriptor(hub_device, index,
+				           connection_info_ex->DeviceDescriptor.iProduct);
+			if (connection_info_ex->DeviceDescriptor.iSerialNumber)
+				port->usb_serial = get_string_descriptor(hub_device, index,
+				           connection_info_ex->DeviceDescriptor.iSerialNumber);
+
+			free(connection_info_ex);
+			break;
+		}
+	}
+}
+
+static void enumerate_hub(struct sp_port *port, char *hub_name,
+                          char *parent_path)
+{
+	USB_NODE_INFORMATION hub_info;
+	HANDLE hub_device;
+	ULONG size = sizeof(hub_info);
+	char *device_name;
+
+	/* open the hub with its full name */
+	if (!(device_name = malloc(strlen("\\\\.\\") + strlen(hub_name) + 1)))
+		return;
+	strcpy(device_name, "\\\\.\\");
+	strcat(device_name, hub_name);
+	hub_device = CreateFile(device_name, GENERIC_WRITE, FILE_SHARE_WRITE,
+	                        NULL, OPEN_EXISTING, 0, NULL);
+	free(device_name);
+	if (hub_device == INVALID_HANDLE_VALUE)
+		return;
+
+	/* get the number of ports of the hub */
+	if (DeviceIoControl(hub_device, IOCTL_USB_GET_NODE_INFORMATION,
+	                    &hub_info, size, &hub_info, size, &size, NULL))
+		/* enumerate the ports of the hub */
+		enumerate_hub_ports(port, hub_device,
+		   hub_info.u.HubInformation.HubDescriptor.bNumberOfPorts, parent_path);
+
+	CloseHandle(hub_device);
+}
+
+static void enumerate_host_controller(struct sp_port *port,
+                                      HANDLE host_controller_device)
+{
+	char *root_hub_name;
+
+	if ((root_hub_name = get_root_hub_name(host_controller_device))) {
+		enumerate_hub(port, root_hub_name, "");
+		free(root_hub_name);
+	}
+}
+
+static void get_usb_details(struct sp_port *port, DEVINST dev_inst_match)
+{
+	HDEVINFO device_info;
+	SP_DEVINFO_DATA device_info_data;
+	ULONG i, size = 0;
+
+	device_info = SetupDiGetClassDevs(&GUID_CLASS_USB_HOST_CONTROLLER,NULL,NULL,
+	                                  DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
+	device_info_data.cbSize = sizeof(device_info_data);
+
+	for (i=0; SetupDiEnumDeviceInfo(device_info, i, &device_info_data); i++) {
+		SP_DEVICE_INTERFACE_DATA device_interface_data;
+		PSP_DEVICE_INTERFACE_DETAIL_DATA device_detail_data;
+		DEVINST dev_inst = dev_inst_match;
+		HANDLE host_controller_device;
+
+		device_interface_data.cbSize = sizeof(device_interface_data);
+		if (!SetupDiEnumDeviceInterfaces(device_info, 0,
+		                                 &GUID_CLASS_USB_HOST_CONTROLLER,
+		                                 i, &device_interface_data))
+			continue;
+
+		if (!SetupDiGetDeviceInterfaceDetail(device_info,&device_interface_data,
+		                                     NULL, 0, &size, NULL)
+		    && GetLastError() != ERROR_INSUFFICIENT_BUFFER)
+			continue;
+
+		if (!(device_detail_data = malloc(size)))
+			continue;
+		device_detail_data->cbSize = sizeof(*device_detail_data);
+		if (!SetupDiGetDeviceInterfaceDetail(device_info,&device_interface_data,
+		                                     device_detail_data, size, &size,
+		                                     NULL)) {
+			free(device_detail_data);
+			continue;
+		}
+
+		while (CM_Get_Parent(&dev_inst, dev_inst, 0) == CR_SUCCESS
+		       && dev_inst != device_info_data.DevInst) { }
+		if (dev_inst != device_info_data.DevInst) {
+			free(device_detail_data);
+			continue;
+		}
+
+		port->usb_bus = i + 1;
+
+		host_controller_device = CreateFile(device_detail_data->DevicePath,
+		                                    GENERIC_WRITE, FILE_SHARE_WRITE,
+		                                    NULL, OPEN_EXISTING, 0, NULL);
+		if (host_controller_device != INVALID_HANDLE_VALUE) {
+			enumerate_host_controller(port, host_controller_device);
+			CloseHandle(host_controller_device);
+		}
+		free(device_detail_data);
+	}
+
+	SetupDiDestroyDeviceInfoList(device_info);
+	return;
+}
+
+SP_PRIV enum sp_return get_port_details(struct sp_port *port)
+{
+	/* Description limited to 127 char,
+	   anything longer would not be user friendly anyway */
+	char description[128];
+	SP_DEVINFO_DATA device_info_data = { .cbSize = sizeof(device_info_data) };
+	HDEVINFO device_info;
+	int i;
+
+	device_info = SetupDiGetClassDevs(NULL, 0, 0,
+	                                  DIGCF_PRESENT | DIGCF_ALLCLASSES);
+	if (device_info == INVALID_HANDLE_VALUE)
+		RETURN_FAIL("SetupDiGetClassDevs() failed");
+
+	for (i=0; SetupDiEnumDeviceInfo(device_info, i, &device_info_data); i++) {
+		HKEY device_key;
+		DEVINST dev_inst;
+		char value[8], class[16];
+		DWORD size, type;
+		CONFIGRET cr;
+
+		/* check if this is the device we are looking for */
+		device_key = SetupDiOpenDevRegKey(device_info, &device_info_data,
+		                                  DICS_FLAG_GLOBAL, 0,
+		                                  DIREG_DEV, KEY_QUERY_VALUE);
+		if (device_key == INVALID_HANDLE_VALUE)
+			continue;
+		size = sizeof(value);
+		if (RegQueryValueExA(device_key, "PortName", NULL, &type, (LPBYTE)value,
+		                     &size) != ERROR_SUCCESS || type != REG_SZ) {
+			RegCloseKey(device_key);
+			continue;
+		}
+		RegCloseKey(device_key);
+		value[sizeof(value)-1] = 0;
+		if (strcmp(value, port->name))
+			continue;
+
+		/* check port transport type */
+		dev_inst = device_info_data.DevInst;
+		size = sizeof(class);
+		cr = CR_FAILURE;
+		while (CM_Get_Parent(&dev_inst, dev_inst, 0) == CR_SUCCESS &&
+		       (cr = CM_Get_DevNode_Registry_PropertyA(dev_inst,
+		                 CM_DRP_CLASS, 0, class, &size, 0)) != CR_SUCCESS) { }
+		if (cr == CR_SUCCESS) {
+			if (!strcmp(class, "USB"))
+				port->transport = SP_TRANSPORT_USB;
+		}
+
+		/* get port description (friendly name) */
+		dev_inst = device_info_data.DevInst;
+		size = sizeof(description);
+		while ((cr = CM_Get_DevNode_Registry_PropertyA(dev_inst,
+		          CM_DRP_FRIENDLYNAME, 0, description, &size, 0)) != CR_SUCCESS
+		       && CM_Get_Parent(&dev_inst, dev_inst, 0) == CR_SUCCESS) { }
+		if (cr == CR_SUCCESS)
+			port->description = strdup(description);
+
+		/* get more informations for USB connected ports */
+		if (port->transport == SP_TRANSPORT_USB) {
+			char usb_path[MAX_USB_PATH] = "", tmp[MAX_USB_PATH];
+			char device_id[MAX_DEVICE_ID_LEN];
+
+			/* recurse over parents to build the USB device path */
+			dev_inst = device_info_data.DevInst;
+			do {
+				/* verify that this layer of the tree is USB related */
+				if (CM_Get_Device_IDA(dev_inst, device_id,
+				                      sizeof(device_id), 0) != CR_SUCCESS
+				    || strncmp(device_id, "USB\\", 4))
+					continue;
+
+				/* discard one layer for composite devices */
+				char compat_ids[512], *p = compat_ids;
+				size = sizeof(compat_ids);
+				if (CM_Get_DevNode_Registry_PropertyA(dev_inst,
+				                                      CM_DRP_COMPATIBLEIDS, 0,
+				                                      &compat_ids,
+				                                      &size, 0) == CR_SUCCESS) {
+					while (*p) {
+						if (!strncmp(p, "USB\\COMPOSITE", 13))
+							break;
+						p += strlen(p) + 1;
+					}
+					if (*p)
+						continue;
+				}
+
+				/* stop the recursion when reaching the USB root */
+				if (!strncmp(device_id, "USB\\ROOT", 8))
+					break;
+
+				/* prepend the address of current USB layer to the USB path */
+				DWORD address;
+				size = sizeof(address);
+				if (CM_Get_DevNode_Registry_PropertyA(dev_inst, CM_DRP_ADDRESS,
+				                        0, &address, &size, 0) == CR_SUCCESS) {
+					strcpy(tmp, usb_path);
+					snprintf(usb_path, sizeof(usb_path), "%d%s%s",
+					         (int)address, *tmp ? "." : "", tmp);
+				}
+			} while (CM_Get_Parent(&dev_inst, dev_inst, 0) == CR_SUCCESS);
+
+			port->usb_path = strdup(usb_path);
+
+			/* wake up the USB device to be able to read string descriptor */
+			char *escaped_port_name;
+			HANDLE handle;
+			if (!(escaped_port_name = malloc(strlen(port->name) + 5)))
+				RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed");
+			sprintf(escaped_port_name, "\\\\.\\%s", port->name);
+			handle = CreateFile(escaped_port_name, GENERIC_READ, 0, 0,
+			                    OPEN_EXISTING,
+			                    FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED, 0);
+			free(escaped_port_name);
+			CloseHandle(handle);
+
+			/* retrieve USB device details from the device descriptor */
+			get_usb_details(port, device_info_data.DevInst);
+		}
+		break;
+	}
+
+	SetupDiDestroyDeviceInfoList(device_info);
+
+	RETURN_OK();
+}
+
+SP_PRIV enum sp_return list_ports(struct sp_port ***list)
+{
+	HKEY key;
+	TCHAR *value, *data;
+	DWORD max_value_len, max_data_size, max_data_len;
+	DWORD value_len, data_size, data_len;
+	DWORD type, index = 0;
+	char *name;
+	int name_len;
+	int ret = SP_OK;
+
+	DEBUG("Opening registry key");
+	if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("HARDWARE\\DEVICEMAP\\SERIALCOMM"),
+			0, KEY_QUERY_VALUE, &key) != ERROR_SUCCESS) {
+		SET_FAIL(ret, "RegOpenKeyEx() failed");
+		goto out_done;
+	}
+	DEBUG("Querying registry key value and data sizes");
+	if (RegQueryInfoKey(key, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+				&max_value_len, &max_data_size, NULL, NULL) != ERROR_SUCCESS) {
+		SET_FAIL(ret, "RegQueryInfoKey() failed");
+		goto out_close;
+	}
+	max_data_len = max_data_size / sizeof(TCHAR);
+	if (!(value = malloc((max_value_len + 1) * sizeof(TCHAR)))) {
+		SET_ERROR(ret, SP_ERR_MEM, "registry value malloc failed");
+		goto out_close;
+	}
+	if (!(data = malloc((max_data_len + 1) * sizeof(TCHAR)))) {
+		SET_ERROR(ret, SP_ERR_MEM, "registry data malloc failed");
+		goto out_free_value;
+	}
+	DEBUG("Iterating over values");
+	while (
+		value_len = max_value_len + 1,
+		data_size = max_data_size,
+		RegEnumValue(key, index, value, &value_len,
+			NULL, &type, (LPBYTE)data, &data_size) == ERROR_SUCCESS)
+	{
+		if (type == REG_SZ) {
+			data_len = data_size / sizeof(TCHAR);
+			data[data_len] = '\0';
+#ifdef UNICODE
+			name_len = WideCharToMultiByte(CP_ACP, 0, data, -1, NULL, 0, NULL, NULL);
+#else
+			name_len = data_len + 1;
+#endif
+			if (!(name = malloc(name_len))) {
+				SET_ERROR(ret, SP_ERR_MEM, "registry port name malloc failed");
+				goto out;
+			}
+#ifdef UNICODE
+			WideCharToMultiByte(CP_ACP, 0, data, -1, name, name_len, NULL, NULL);
+#else
+			strcpy(name, data);
+#endif
+			DEBUG_FMT("Found port %s", name);
+			if (!(*list = list_append(*list, name))) {
+				SET_ERROR(ret, SP_ERR_MEM, "list append failed");
+				free(name);
+				goto out;
+			}
+			free(name);
+		}
+		index++;
+	}
+out:
+	free(data);
+out_free_value:
+	free(value);
+out_close:
+	RegCloseKey(key);
+out_done:
+
+	return ret;
+}
+
+#endif