USB test run process

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Hi,

         I am unable to run testusb.c,  may I know which kind of devcies I
need to connect to my PC fort testing the USB drive because I just connect
one serial cable it created one file "/dev/bus/usb/002/010" if I am testing
that device it is showing following error (I am attaching my testusb.c
please check it).

/dev/bus/usb/002/010 test 0 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 1 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 2 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 3 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 4 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 5 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 6 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 7 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 8 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 9 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 10 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 11 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 12 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 13 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 14 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 15 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 16 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 17 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 18 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 19 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 20 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 21 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 22 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 23 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 24 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 25 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 26 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 27 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 28 --> 25 (Inappropriate ioctl for device)
/dev/bus/usb/002/010 test 29 --> 25 (Inappropriate ioctl for device)


but if I am running ./testusb -a then it is resulting "no test devices
recognized".

Please specify the test run process clearly and tell me whether this test is
enough to cover all USB classes(Ethernet class, common class etc) testing.

Thanks & regards,
Narendra Kumar.
/* $(CROSS_COMPILE)cc -Wall -Wextra -g -lpthread -o testusb testusb.c */

/*
 * Copyright (c) 2002 by David Brownell
 * Copyright (c) 2010 by Samsung Electronics
 * Author: Michal Nazarewicz <mina86@xxxxxxxxxx>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 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 General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/*
 * This program issues ioctls to perform the tests implemented by the
 * kernel driver.  It can generate a variety of transfer patterns; you
 * should make sure to test both regular streaming and mixes of
 * transfer sizes (including short transfers).
 *
 * For more information on how this can be used and on USB testing
 * refer to <URL:http://www.linux-usb.org/usbtest/>.
 */

#include <stdio.h>
#include <string.h>
#include <ftw.h>
#include <stdlib.h>
#include <pthread.h>
#include <unistd.h>
#include <errno.h>
#include <limits.h>

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

#include <sys/ioctl.h>
#include <linux/usbdevice_fs.h>

/*-------------------------------------------------------------------------*/

#define	TEST_CASES	30

// FIXME make these public somewhere; usbdevfs.h?

struct usbtest_param {
	// inputs
	unsigned		test_num;	/* 0..(TEST_CASES-1) */
	unsigned		iterations;
	unsigned		length;
	unsigned		vary;
	unsigned		sglen;

	// outputs
	struct timeval		duration;
};
#define USBTEST_REQUEST	_IOWR('U', 100, struct usbtest_param)

/*-------------------------------------------------------------------------*/

/* #include <linux/usb_ch9.h> */

#define USB_DT_DEVICE			0x01
#define USB_DT_INTERFACE		0x04

#define USB_CLASS_PER_INTERFACE		0	/* for DeviceClass */
#define USB_CLASS_VENDOR_SPEC		0xff


struct usb_device_descriptor {
	__u8  bLength;
	__u8  bDescriptorType;
	__u16 bcdUSB;
	__u8  bDeviceClass;
	__u8  bDeviceSubClass;
	__u8  bDeviceProtocol;
	__u8  bMaxPacketSize0;
	__u16 idVendor;
	__u16 idProduct;
	__u16 bcdDevice;
	__u8  iManufacturer;
	__u8  iProduct;
	__u8  iSerialNumber;
	__u8  bNumConfigurations;
} __attribute__ ((packed));

struct usb_interface_descriptor {
	__u8  bLength;
	__u8  bDescriptorType;

	__u8  bInterfaceNumber;
	__u8  bAlternateSetting;
	__u8  bNumEndpoints;
	__u8  bInterfaceClass;
	__u8  bInterfaceSubClass;
	__u8  bInterfaceProtocol;
	__u8  iInterface;
} __attribute__ ((packed));

enum usb_device_speed {
	USB_SPEED_UNKNOWN = 0,			/* enumerating */
	USB_SPEED_LOW, USB_SPEED_FULL,		/* usb 1.1 */
	USB_SPEED_HIGH				/* usb 2.0 */
};

/*-------------------------------------------------------------------------*/

static char *speed (enum usb_device_speed s)
{
	switch (s) {
	case USB_SPEED_UNKNOWN:	return "unknown";
	case USB_SPEED_LOW:	return "low";
	case USB_SPEED_FULL:	return "full";
	case USB_SPEED_HIGH:	return "high";
	default:		return "??";
	}
}

struct testdev {
	struct testdev		*next;
	char			*name;
	pthread_t		thread;
	enum usb_device_speed	speed;
	unsigned		ifnum : 8;
	unsigned		forever : 1;
	int			test;

	struct usbtest_param	param;
};
static struct testdev		*testdevs;

static int testdev_ffs_ifnum(FILE *fd)
{
	union {
		char buf[255];
		struct usb_interface_descriptor intf;
	} u;

	for (;;) {
		if (fread(u.buf, 1, 1, fd) != 1)
			return -1;
		if (fread(u.buf + 1, (unsigned char)u.buf[0] - 1, 1, fd) != 1)
			return -1;

		if (u.intf.bLength == sizeof u.intf
		 && u.intf.bDescriptorType == USB_DT_INTERFACE
		 && u.intf.bNumEndpoints == 2
		 && u.intf.bInterfaceClass == USB_CLASS_VENDOR_SPEC
		 && u.intf.bInterfaceSubClass == 0
		 && u.intf.bInterfaceProtocol == 0)
			return (unsigned char)u.intf.bInterfaceNumber;
	}
}

static int testdev_ifnum(FILE *fd)
{
	struct usb_device_descriptor dev;

	if (fread(&dev, sizeof dev, 1, fd) != 1)
		return -1;

	if (dev.bLength != sizeof dev || dev.bDescriptorType != USB_DT_DEVICE)
		return -1;

	/* FX2 with (tweaked) bulksrc firmware */
	if (dev.idVendor == 0x0547 && dev.idProduct == 0x1002)
		return 0;

	/*----------------------------------------------------*/

	/* devices that start up using the EZ-USB default device and
	 * which we can use after loading simple firmware.  hotplug
	 * can fxload it, and then run this test driver.
	 *
	 * we return false positives in two cases:
	 * - the device has a "real" driver (maybe usb-serial) that
	 *   renumerates.  the device should vanish quickly.
	 * - the device doesn't have the test firmware installed.
	 */

	/* generic EZ-USB FX controller */
	if (dev.idVendor == 0x0547 && dev.idProduct == 0x2235)
		return 0;

	/* generic EZ-USB FX2 controller */
	if (dev.idVendor == 0x04b4 && dev.idProduct == 0x8613)
		return 0;

	/* CY3671 development board with EZ-USB FX */
	if (dev.idVendor == 0x0547 && dev.idProduct == 0x0080)
		return 0;

	/* Keyspan 19Qi uses an21xx (original EZ-USB) */
	if (dev.idVendor == 0x06cd && dev.idProduct == 0x010b)
		return 0;

	/*----------------------------------------------------*/

	/* "gadget zero", Linux-USB test software */
	if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4a0)
		return 0;

	/* user mode subset of that */
	if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4a4)
		return testdev_ffs_ifnum(fd);
		/* return 0; */

	/* iso version of usermode code */
	if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4a3)
		return 0;

	/* some GPL'd test firmware uses these IDs */

	if (dev.idVendor == 0xfff0 && dev.idProduct == 0xfff0)
		return 0;

	/*----------------------------------------------------*/

	/* iBOT2 high speed webcam */
	if (dev.idVendor == 0x0b62 && dev.idProduct == 0x0059)
		return 0;

	/*----------------------------------------------------*/

	/* the FunctionFS gadget can have the source/sink interface
	 * anywhere.  We look for an interface descriptor that match
	 * what we expect.  We ignore configuratiens thou. */

	if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4ac
	 && (dev.bDeviceClass == USB_CLASS_PER_INTERFACE
	  || dev.bDeviceClass == USB_CLASS_VENDOR_SPEC))
		return testdev_ffs_ifnum(fd);

	return -1;
}

static int find_testdev(const char *name, const struct stat *sb, int flag)
{
	FILE				*fd;
	int				ifnum;
	struct testdev			*entry;

	(void)sb; /* unused */

	if (flag != FTW_F)
		return 0;

	fd = fopen(name, "rb");
	if (!fd) {
		perror(name);
		return 0;
	}

	ifnum = testdev_ifnum(fd);
	fclose(fd);
	if (ifnum < 0)
		return 0;

	entry = calloc(1, sizeof *entry);
	if (!entry)
		goto nomem;

	entry->name = strdup(name);
	if (!entry->name) {
		free(entry);
nomem:
		perror("malloc");
		return 0;
	}

	entry->ifnum = ifnum;

	/* FIXME update USBDEVFS_CONNECTINFO so it tells about high speed etc */

	fprintf(stderr, "%s speed\t%s\t%u\n",
		speed(entry->speed), entry->name, entry->ifnum);

	entry->next = testdevs;
	testdevs = entry;
	return 0;
}

static int
usbdev_ioctl (int fd, int ifno, unsigned request, void *param)
{
	struct usbdevfs_ioctl	wrapper;

	wrapper.ifno = ifno;
	wrapper.ioctl_code = request;
	wrapper.data = param;

	return ioctl (fd, USBDEVFS_IOCTL, &wrapper);
}

static void *handle_testdev (void *arg)
{
	struct testdev		*dev = arg;
	int			fd, i;
	int			status;

	if ((fd = open (dev->name, O_RDWR)) < 0) {
		perror ("can't open dev file r/w");
		return 0;
	}

restart:
	for (i = 0; i < TEST_CASES; i++) {
		if (dev->test != -1 && dev->test != i)
			continue;
		dev->param.test_num = i;

		status = usbdev_ioctl (fd, dev->ifnum,
				USBTEST_REQUEST, &dev->param);
		if (status < 0 && errno == EOPNOTSUPP)
			continue;

		/* FIXME need a "syslog it" option for background testing */

		/* NOTE: each thread emits complete lines; no fragments! */
		if (status < 0) {
			char	buf [80];
			int	err = errno;

			if (strerror_r (errno, buf, sizeof buf)) {
				snprintf (buf, sizeof buf, "error %d", err);
				errno = err;
			}
			printf ("%s test %d --> %d (%s)\n",
				dev->name, i, errno, buf);
		} else
			printf ("%s test %d, %4d.%.06d secs\n", dev->name, i,
				(int) dev->param.duration.tv_sec,
				(int) dev->param.duration.tv_usec);

		fflush (stdout);
	}
	if (dev->forever)
		goto restart;

	close (fd);
	return arg;
}

static const char *usb_dir_find(void)
{
	static char udev_usb_path[] = "/dev/bus/usb";

	if (access(udev_usb_path, F_OK) == 0)
		return udev_usb_path;

	return NULL;
}

static int parse_num(unsigned *num, const char *str)
{
	unsigned long val;
	char *end;

	errno = 0;
	val = strtoul(str, &end, 0);
	if (errno || *end || val > UINT_MAX)
		return -1;
	*num = val;
	return 0;
}

int main (int argc, char **argv)
{

	int			c;
	struct testdev		*entry;
	char			*device;
	const char		*usb_dir = NULL;
	int			all = 0, forever = 0, not = 0;
	int			test = -1 /* all */;
	struct usbtest_param	param;

	/* pick defaults that works with all speeds, without short packets.
	 *
	 * Best per-frame data rates:
	 *     high speed, bulk       512 * 13 * 8 = 53248
	 *                 interrupt 1024 *  3 * 8 = 24576
	 *     full speed, bulk/intr   64 * 19     =  1216
	 *                 interrupt   64 *  1     =    64
	 *      low speed, interrupt    8 *  1     =     8
	 */
	param.iterations = 1000;
	param.length = 512;
	param.vary = 512;
	param.sglen = 32;

	/* for easy use when hotplugging */
	device = getenv ("DEVICE");

	while ((c = getopt (argc, argv, "D:aA:c:g:hlns:t:v:")) != EOF)
	switch (c) {
	case 'D':	/* device, if only one */
		device = optarg;
		continue;
	case 'A':	/* use all devices with specified USB dir */
		usb_dir = optarg;
		/* FALL THROUGH */
	case 'a':	/* use all devices */
		device = NULL;
		all = 1;
		continue;
	case 'c':	/* count iterations */
		if (parse_num(&param.iterations, optarg))
			goto usage;
		continue;
	case 'g':	/* scatter/gather entries */
		if (parse_num(&param.sglen, optarg))
			goto usage;
		continue;
	case 'l':	/* loop forever */
		forever = 1;
		continue;
	case 'n':	/* no test running! */
		not = 1;
		continue;
	case 's':	/* size of packet */
		if (parse_num(&param.length, optarg))
			goto usage;
		continue;
	case 't':	/* run just one test */
		test = atoi (optarg);
		if (test < 0)
			goto usage;
		continue;
	case 'v':	/* vary packet size by ... */
		if (parse_num(&param.vary, optarg))
			goto usage;
		continue;
	case '?':
	case 'h':
	default:
usage:
		fprintf (stderr,
			"usage: %s [options]\n"
			"Options:\n"
			"\t-D dev		only test specific device\n"
			"\t-A usb-dir\n"
			"\t-a		test all recognized devices\n"
			"\t-l		loop forever(for stress test)\n"
			"\t-t testnum	only run specified case\n"
			"\t-n		no test running, show devices to be tested\n"
			"Case arguments:\n"
			"\t-c iterations	default 1000\n"
			"\t-s packetsize	default 512\n"
			"\t-g sglen	default 32\n"
			"\t-v vary		default 512\n",
			argv[0]);
		return 1;
	}
	if (optind != argc)
		goto usage;
	if (!all && !device) {
		fprintf (stderr, "must specify '-a' or '-D dev', "
			"or DEVICE=/dev/bus/usb/BBB/DDD in env\n");
		goto usage;
	}

	/* Find usb device subdirectory */
	if (!usb_dir) {
		usb_dir = usb_dir_find();
		if (!usb_dir) {
			fputs ("USB device files are missing\n", stderr);
			return -1;
		}
	}

	/* collect and list the test devices */
	if (ftw (usb_dir, find_testdev, 3) != 0) {
		fputs ("ftw failed; are USB device files missing?\n", stderr);
		return -1;
	}

	/* quit, run single test, or create test threads */
	if (!testdevs && !device) {
		fputs ("no test devices recognized\n", stderr);
		return -1;
	}
	if (not)
		return 0;
	if (testdevs && testdevs->next == 0 && !device)
		device = testdevs->name;
	for (entry = testdevs; entry; entry = entry->next) {
		int	status;

		entry->param = param;
		entry->forever = forever;
		entry->test = test;

		if (device) {
			if (strcmp (entry->name, device))
				continue;
			return handle_testdev (entry) != entry;
		}
		status = pthread_create (&entry->thread, 0, handle_testdev, entry);
		if (status)
			perror ("pthread_create");
	}
	if (device) {
		struct testdev		dev;

		/* kernel can recognize test devices we don't */
		fprintf (stderr, "%s: %s may see only control tests\n",
				argv [0], device);

		memset (&dev, 0, sizeof dev);
		dev.name = device;
		dev.param = param;
		dev.forever = forever;
		dev.test = test;
		return handle_testdev (&dev) != &dev;
	}

	/* wait for tests to complete */
	for (entry = testdevs; entry; entry = entry->next) {
		void	*retval;

		if (pthread_join (entry->thread, &retval))
			perror ("pthread_join");
		/* testing errors discarded! */
	}

	return 0;
}

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