examples/testlibusb.c - third_party/libusb - Git at Google

 /*
 * Test suite program based of libusb-0.1-compat testlibusb
 * Copyright (c) 2013 Nathan Hjelm <hjelmn@mac.ccom>
 *
 * This library 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 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

 #include <stdio.h>
 #include <string.h>
 #include "libusb.h"

 int verbose = 0;

 static void print_endpoint_comp(const struct libusb_ss_endpoint_companion_descriptor *ep_comp)
 {
 	printf("      USB 3.0 Endpoint Companion:\n");
 	printf("        bMaxBurst:           %u\n", ep_comp->bMaxBurst);
 	printf("        bmAttributes:        %02xh\n", ep_comp->bmAttributes);
 	printf("        wBytesPerInterval:   %u\n", ep_comp->wBytesPerInterval);
 }

 static void print_endpoint(const struct libusb_endpoint_descriptor *endpoint)
 {
 	int i, ret;

 	printf("      Endpoint:\n");
 	printf("        bEndpointAddress:    %02xh\n", endpoint->bEndpointAddress);
 	printf("        bmAttributes:        %02xh\n", endpoint->bmAttributes);
 	printf("        wMaxPacketSize:      %u\n", endpoint->wMaxPacketSize);
 	printf("        bInterval:           %u\n", endpoint->bInterval);
 	printf("        bRefresh:            %u\n", endpoint->bRefresh);
 	printf("        bSynchAddress:       %u\n", endpoint->bSynchAddress);

 	for (i = 0; i < endpoint->extra_length;) {
 		if (LIBUSB_DT_SS_ENDPOINT_COMPANION == endpoint->extra[i + 1]) {
 			struct libusb_ss_endpoint_companion_descriptor *ep_comp;

 			ret = libusb_get_ss_endpoint_companion_descriptor(NULL, endpoint, &ep_comp);
 			if (LIBUSB_SUCCESS != ret)
 				continue;

 			print_endpoint_comp(ep_comp);

 			libusb_free_ss_endpoint_companion_descriptor(ep_comp);
 		}

 		i += endpoint->extra[i];
 	}
 }

 static void print_altsetting(const struct libusb_interface_descriptor *interface)
 {
 	uint8_t i;

 	printf("    Interface:\n");
 	printf("      bInterfaceNumber:      %u\n", interface->bInterfaceNumber);
 	printf("      bAlternateSetting:     %u\n", interface->bAlternateSetting);
 	printf("      bNumEndpoints:         %u\n", interface->bNumEndpoints);
 	printf("      bInterfaceClass:       %u\n", interface->bInterfaceClass);
 	printf("      bInterfaceSubClass:    %u\n", interface->bInterfaceSubClass);
 	printf("      bInterfaceProtocol:    %u\n", interface->bInterfaceProtocol);
 	printf("      iInterface:            %u\n", interface->iInterface);

 	for (i = 0; i < interface->bNumEndpoints; i++)
 		print_endpoint(&interface->endpoint[i]);
 }

 static void print_2_0_ext_cap(struct libusb_usb_2_0_extension_descriptor *usb_2_0_ext_cap)
 {
 	printf("    USB 2.0 Extension Capabilities:\n");
 	printf("      bDevCapabilityType:    %u\n", usb_2_0_ext_cap->bDevCapabilityType);
 	printf("      bmAttributes:          %08xh\n", usb_2_0_ext_cap->bmAttributes);
 }

 static void print_ss_usb_cap(struct libusb_ss_usb_device_capability_descriptor *ss_usb_cap)
 {
 	printf("    USB 3.0 Capabilities:\n");
 	printf("      bDevCapabilityType:    %u\n", ss_usb_cap->bDevCapabilityType);
 	printf("      bmAttributes:          %02xh\n", ss_usb_cap->bmAttributes);
 	printf("      wSpeedSupported:       %u\n", ss_usb_cap->wSpeedSupported);
 	printf("      bFunctionalitySupport: %u\n", ss_usb_cap->bFunctionalitySupport);
 	printf("      bU1devExitLat:         %u\n", ss_usb_cap->bU1DevExitLat);
 	printf("      bU2devExitLat:         %u\n", ss_usb_cap->bU2DevExitLat);
 }

 static void print_bos(libusb_device_handle *handle)
 {
 	struct libusb_bos_descriptor *bos;
 	uint8_t i;
 	int ret;

 	ret = libusb_get_bos_descriptor(handle, &bos);
 	if (ret < 0)
 		return;

 	printf("  Binary Object Store (BOS):\n");
 	printf("    wTotalLength:            %u\n", bos->wTotalLength);
 	printf("    bNumDeviceCaps:          %u\n", bos->bNumDeviceCaps);

 	for (i = 0; i < bos->bNumDeviceCaps; i++) {
 		struct libusb_bos_dev_capability_descriptor *dev_cap = bos->dev_capability[i];

 		if (dev_cap->bDevCapabilityType == LIBUSB_BT_USB_2_0_EXTENSION) {
 			struct libusb_usb_2_0_extension_descriptor *usb_2_0_extension;

 			ret = libusb_get_usb_2_0_extension_descriptor(NULL, dev_cap, &usb_2_0_extension);
 			if (ret < 0)
 				return;

 			print_2_0_ext_cap(usb_2_0_extension);
 			libusb_free_usb_2_0_extension_descriptor(usb_2_0_extension);
 		} else if (dev_cap->bDevCapabilityType == LIBUSB_BT_SS_USB_DEVICE_CAPABILITY) {
 			struct libusb_ss_usb_device_capability_descriptor *ss_dev_cap;

 			ret = libusb_get_ss_usb_device_capability_descriptor(NULL, dev_cap, &ss_dev_cap);
 			if (ret < 0)
 				return;

 			print_ss_usb_cap(ss_dev_cap);
 			libusb_free_ss_usb_device_capability_descriptor(ss_dev_cap);
 		}
 	}

 	libusb_free_bos_descriptor(bos);
 }

 static void print_interface(const struct libusb_interface *interface)
 {
 	int i;

 	for (i = 0; i < interface->num_altsetting; i++)
 		print_altsetting(&interface->altsetting[i]);
 }

 static void print_configuration(struct libusb_config_descriptor *config)
 {
 	uint8_t i;

 	printf("  Configuration:\n");
 	printf("    wTotalLength:            %u\n", config->wTotalLength);
 	printf("    bNumInterfaces:          %u\n", config->bNumInterfaces);
 	printf("    bConfigurationValue:     %u\n", config->bConfigurationValue);
 	printf("    iConfiguration:          %u\n", config->iConfiguration);
 	printf("    bmAttributes:            %02xh\n", config->bmAttributes);
 	printf("    MaxPower:                %u\n", config->MaxPower);

 	for (i = 0; i < config->bNumInterfaces; i++)
 		print_interface(&config->interface[i]);
 }

 static void print_device(libusb_device *dev, libusb_device_handle *handle)
 {
 	struct libusb_device_descriptor desc;
 	unsigned char string[256];
 	const char *speed;
 	int ret;
 	uint8_t i;

 	switch (libusb_get_device_speed(dev)) {
 	case LIBUSB_SPEED_LOW:		speed = "1.5M"; break;
 	case LIBUSB_SPEED_FULL:		speed = "12M"; break;
 	case LIBUSB_SPEED_HIGH:		speed = "480M"; break;
 	case LIBUSB_SPEED_SUPER:	speed = "5G"; break;
 	case LIBUSB_SPEED_SUPER_PLUS:	speed = "10G"; break;
 	default:			speed = "Unknown";
 	}

 	ret = libusb_get_device_descriptor(dev, &desc);
 	if (ret < 0) {
 		fprintf(stderr, "failed to get device descriptor");
 		return;
 	}

 	printf("Dev (bus %u, device %u): %04X - %04X speed: %s\n",
 	       libusb_get_bus_number(dev), libusb_get_device_address(dev),
 	       desc.idVendor, desc.idProduct, speed);

 	if (!handle)
 		libusb_open(dev, &handle);

 	if (handle) {
 		if (desc.iManufacturer) {
 			ret = libusb_get_string_descriptor_ascii(handle, desc.iManufacturer, string, sizeof(string));
 			if (ret > 0)
 				printf("  Manufacturer:              %s\n", (char *)string);
 		}

 		if (desc.iProduct) {
 			ret = libusb_get_string_descriptor_ascii(handle, desc.iProduct, string, sizeof(string));
 			if (ret > 0)
 				printf("  Product:                   %s\n", (char *)string);
 		}

 		if (desc.iSerialNumber && verbose) {
 			ret = libusb_get_string_descriptor_ascii(handle, desc.iSerialNumber, string, sizeof(string));
 			if (ret > 0)
 				printf("  Serial Number:             %s\n", (char *)string);
 		}
 	}

 	if (verbose) {
 		for (i = 0; i < desc.bNumConfigurations; i++) {
 			struct libusb_config_descriptor *config;

 			ret = libusb_get_config_descriptor(dev, i, &config);
 			if (LIBUSB_SUCCESS != ret) {
 				printf("  Couldn't retrieve descriptors\n");
 				continue;
 			}

 			print_configuration(config);

 			libusb_free_config_descriptor(config);
 		}

 		if (handle && desc.bcdUSB >= 0x0201)
 			print_bos(handle);
 	}

 	if (handle)
 		libusb_close(handle);
 }

 #ifdef __linux__
 #include <errno.h>
 #include <fcntl.h>
 #include <unistd.h>

 static int test_wrapped_device(const char *device_name)
 {
 	libusb_device_handle *handle;
 	int r, fd;

 	fd = open(device_name, O_RDWR);
 	if (fd < 0) {
 		printf("Error could not open %s: %s\n", device_name, strerror(errno));
 		return 1;
 	}
 	r = libusb_wrap_sys_device(NULL, fd, &handle);
 	if (r) {
 		printf("Error wrapping device: %s: %s\n", device_name, libusb_strerror(r));
 		close(fd);
 		return 1;
 	}
 	print_device(libusb_get_device(handle), handle);
 	close(fd);
 	return 0;
 }
 #else
 static int test_wrapped_device(const char *device_name)
 {
 	printf("Testing wrapped devices is not supported on your platform\n");
 	return 1;
 }
 #endif

 int main(int argc, char *argv[])
 {
 	const char *device_name = NULL;
 	libusb_device **devs;
 	ssize_t cnt;
 	int r, i;

 	for (i = 1; i < argc; i++) {
 		if (!strcmp(argv[i], "-v")) {
 			verbose = 1;
 		} else if (!strcmp(argv[i], "-d") && (i + 1) < argc) {
 			i++;
 			device_name = argv[i];
 		} else {
 			printf("Usage %s [-v] [-d </dev/bus/usb/...>]\n", argv[0]);
 			printf("Note use -d to test libusb_wrap_sys_device()\n");
 			return 1;
 		}
 	}

 	r = libusb_init(NULL);
 	if (r < 0)
 		return r;

 	if (device_name) {
 		r = test_wrapped_device(device_name);
 	} else {
 		cnt = libusb_get_device_list(NULL, &devs);
 		if (cnt < 0) {
 			libusb_exit(NULL);
 			return 1;
 		}

 		for (i = 0; devs[i]; i++)
 			print_device(devs[i], NULL);

 		libusb_free_device_list(devs, 1);
 	}

 	libusb_exit(NULL);
 	return r;
 }
	/*
	* Test suite program based of libusb-0.1-compat testlibusb
	* Copyright (c) 2013 Nathan Hjelm <hjelmn@mac.ccom>
	*
	* This library 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 2.1 of the License, or (at your option) any later version.
	*
	* This library 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
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with this library; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	*/

	#include <stdio.h>
	#include <string.h>
	#include "libusb.h"

	int verbose = 0;

	static void print_endpoint_comp(const struct libusb_ss_endpoint_companion_descriptor *ep_comp)
	{
	printf(" USB 3.0 Endpoint Companion:\n");
	printf(" bMaxBurst: %u\n", ep_comp->bMaxBurst);
	printf(" bmAttributes: %02xh\n", ep_comp->bmAttributes);
	printf(" wBytesPerInterval: %u\n", ep_comp->wBytesPerInterval);
	}

	static void print_endpoint(const struct libusb_endpoint_descriptor *endpoint)
	{
	int i, ret;

	printf(" Endpoint:\n");
	printf(" bEndpointAddress: %02xh\n", endpoint->bEndpointAddress);
	printf(" bmAttributes: %02xh\n", endpoint->bmAttributes);
	printf(" wMaxPacketSize: %u\n", endpoint->wMaxPacketSize);
	printf(" bInterval: %u\n", endpoint->bInterval);
	printf(" bRefresh: %u\n", endpoint->bRefresh);
	printf(" bSynchAddress: %u\n", endpoint->bSynchAddress);

	for (i = 0; i < endpoint->extra_length;) {
	if (LIBUSB_DT_SS_ENDPOINT_COMPANION == endpoint->extra[i + 1]) {
	struct libusb_ss_endpoint_companion_descriptor *ep_comp;

	ret = libusb_get_ss_endpoint_companion_descriptor(NULL, endpoint, &ep_comp);
	if (LIBUSB_SUCCESS != ret)
	continue;

	print_endpoint_comp(ep_comp);

	libusb_free_ss_endpoint_companion_descriptor(ep_comp);
	}

	i += endpoint->extra[i];
	}
	}

	static void print_altsetting(const struct libusb_interface_descriptor *interface)
	{
	uint8_t i;

	printf(" Interface:\n");
	printf(" bInterfaceNumber: %u\n", interface->bInterfaceNumber);
	printf(" bAlternateSetting: %u\n", interface->bAlternateSetting);
	printf(" bNumEndpoints: %u\n", interface->bNumEndpoints);
	printf(" bInterfaceClass: %u\n", interface->bInterfaceClass);
	printf(" bInterfaceSubClass: %u\n", interface->bInterfaceSubClass);
	printf(" bInterfaceProtocol: %u\n", interface->bInterfaceProtocol);
	printf(" iInterface: %u\n", interface->iInterface);

	for (i = 0; i < interface->bNumEndpoints; i++)
	print_endpoint(&interface->endpoint[i]);
	}

	static void print_2_0_ext_cap(struct libusb_usb_2_0_extension_descriptor *usb_2_0_ext_cap)
	{
	printf(" USB 2.0 Extension Capabilities:\n");
	printf(" bDevCapabilityType: %u\n", usb_2_0_ext_cap->bDevCapabilityType);
	printf(" bmAttributes: %08xh\n", usb_2_0_ext_cap->bmAttributes);
	}

	static void print_ss_usb_cap(struct libusb_ss_usb_device_capability_descriptor *ss_usb_cap)
	{
	printf(" USB 3.0 Capabilities:\n");
	printf(" bDevCapabilityType: %u\n", ss_usb_cap->bDevCapabilityType);
	printf(" bmAttributes: %02xh\n", ss_usb_cap->bmAttributes);
	printf(" wSpeedSupported: %u\n", ss_usb_cap->wSpeedSupported);
	printf(" bFunctionalitySupport: %u\n", ss_usb_cap->bFunctionalitySupport);
	printf(" bU1devExitLat: %u\n", ss_usb_cap->bU1DevExitLat);
	printf(" bU2devExitLat: %u\n", ss_usb_cap->bU2DevExitLat);
	}

	static void print_bos(libusb_device_handle *handle)
	{
	struct libusb_bos_descriptor *bos;
	uint8_t i;
	int ret;

	ret = libusb_get_bos_descriptor(handle, &bos);
	if (ret < 0)
	return;

	printf(" Binary Object Store (BOS):\n");
	printf(" wTotalLength: %u\n", bos->wTotalLength);
	printf(" bNumDeviceCaps: %u\n", bos->bNumDeviceCaps);

	for (i = 0; i < bos->bNumDeviceCaps; i++) {
	struct libusb_bos_dev_capability_descriptor *dev_cap = bos->dev_capability[i];

	if (dev_cap->bDevCapabilityType == LIBUSB_BT_USB_2_0_EXTENSION) {
	struct libusb_usb_2_0_extension_descriptor *usb_2_0_extension;

	ret = libusb_get_usb_2_0_extension_descriptor(NULL, dev_cap, &usb_2_0_extension);
	if (ret < 0)
	return;

	print_2_0_ext_cap(usb_2_0_extension);
	libusb_free_usb_2_0_extension_descriptor(usb_2_0_extension);
	} else if (dev_cap->bDevCapabilityType == LIBUSB_BT_SS_USB_DEVICE_CAPABILITY) {
	struct libusb_ss_usb_device_capability_descriptor *ss_dev_cap;

	ret = libusb_get_ss_usb_device_capability_descriptor(NULL, dev_cap, &ss_dev_cap);
	if (ret < 0)
	return;

	print_ss_usb_cap(ss_dev_cap);
	libusb_free_ss_usb_device_capability_descriptor(ss_dev_cap);
	}
	}

	libusb_free_bos_descriptor(bos);
	}

	static void print_interface(const struct libusb_interface *interface)
	{
	int i;

	for (i = 0; i < interface->num_altsetting; i++)
	print_altsetting(&interface->altsetting[i]);
	}

	static void print_configuration(struct libusb_config_descriptor *config)
	{
	uint8_t i;

	printf(" Configuration:\n");
	printf(" wTotalLength: %u\n", config->wTotalLength);
	printf(" bNumInterfaces: %u\n", config->bNumInterfaces);
	printf(" bConfigurationValue: %u\n", config->bConfigurationValue);
	printf(" iConfiguration: %u\n", config->iConfiguration);
	printf(" bmAttributes: %02xh\n", config->bmAttributes);
	printf(" MaxPower: %u\n", config->MaxPower);

	for (i = 0; i < config->bNumInterfaces; i++)
	print_interface(&config->interface[i]);
	}

	static void print_device(libusb_device dev, libusb_device_handle handle)
	{
	struct libusb_device_descriptor desc;
	unsigned char string[256];
	const char *speed;
	int ret;
	uint8_t i;

	switch (libusb_get_device_speed(dev)) {
	case LIBUSB_SPEED_LOW: speed = "1.5M"; break;
	case LIBUSB_SPEED_FULL: speed = "12M"; break;
	case LIBUSB_SPEED_HIGH: speed = "480M"; break;
	case LIBUSB_SPEED_SUPER: speed = "5G"; break;
	case LIBUSB_SPEED_SUPER_PLUS: speed = "10G"; break;
	default: speed = "Unknown";
	}

	ret = libusb_get_device_descriptor(dev, &desc);
	if (ret < 0) {
	fprintf(stderr, "failed to get device descriptor");
	return;
	}

	printf("Dev (bus %u, device %u): %04X - %04X speed: %s\n",
	libusb_get_bus_number(dev), libusb_get_device_address(dev),
	desc.idVendor, desc.idProduct, speed);

	if (!handle)
	libusb_open(dev, &handle);

	if (handle) {
	if (desc.iManufacturer) {
	ret = libusb_get_string_descriptor_ascii(handle, desc.iManufacturer, string, sizeof(string));
	if (ret > 0)
	printf(" Manufacturer: %s\n", (char *)string);
	}

	if (desc.iProduct) {
	ret = libusb_get_string_descriptor_ascii(handle, desc.iProduct, string, sizeof(string));
	if (ret > 0)
	printf(" Product: %s\n", (char *)string);
	}

	if (desc.iSerialNumber && verbose) {
	ret = libusb_get_string_descriptor_ascii(handle, desc.iSerialNumber, string, sizeof(string));
	if (ret > 0)
	printf(" Serial Number: %s\n", (char *)string);
	}
	}

	if (verbose) {
	for (i = 0; i < desc.bNumConfigurations; i++) {
	struct libusb_config_descriptor *config;

	ret = libusb_get_config_descriptor(dev, i, &config);
	if (LIBUSB_SUCCESS != ret) {
	printf(" Couldn't retrieve descriptors\n");
	continue;
	}

	print_configuration(config);

	libusb_free_config_descriptor(config);
	}

	if (handle && desc.bcdUSB >= 0x0201)
	print_bos(handle);
	}

	if (handle)
	libusb_close(handle);
	}

	#ifdef __linux__
	#include <errno.h>
	#include <fcntl.h>
	#include <unistd.h>

	static int test_wrapped_device(const char *device_name)
	{
	libusb_device_handle *handle;
	int r, fd;

	fd = open(device_name, O_RDWR);
	if (fd < 0) {
	printf("Error could not open %s: %s\n", device_name, strerror(errno));
	return 1;
	}
	r = libusb_wrap_sys_device(NULL, fd, &handle);
	if (r) {
	printf("Error wrapping device: %s: %s\n", device_name, libusb_strerror(r));
	close(fd);
	return 1;
	}
	print_device(libusb_get_device(handle), handle);
	close(fd);
	return 0;
	}
	#else
	static int test_wrapped_device(const char *device_name)
	{
	printf("Testing wrapped devices is not supported on your platform\n");
	return 1;
	}
	#endif

	int main(int argc, char *argv[])
	{
	const char *device_name = NULL;
	libusb_device **devs;
	ssize_t cnt;
	int r, i;

	for (i = 1; i < argc; i++) {
	if (!strcmp(argv[i], "-v")) {
	verbose = 1;
	} else if (!strcmp(argv[i], "-d") && (i + 1) < argc) {
	i++;
	device_name = argv[i];
	} else {
	printf("Usage %s [-v] [-d </dev/bus/usb/...>]\n", argv[0]);
	printf("Note use -d to test libusb_wrap_sys_device()\n");
	return 1;
	}
	}

	r = libusb_init(NULL);
	if (r < 0)
	return r;

	if (device_name) {
	r = test_wrapped_device(device_name);
	} else {
	cnt = libusb_get_device_list(NULL, &devs);
	if (cnt < 0) {
	libusb_exit(NULL);
	return 1;
	}

	for (i = 0; devs[i]; i++)
	print_device(devs[i], NULL);

	libusb_free_device_list(devs, 1);
	}

	libusb_exit(NULL);
	return r;
	}