diff options
| -rw-r--r-- | package/utils/usbreset/Makefile | 39 | ||||
| -rw-r--r-- | package/utils/usbreset/src/usbreset.c | 236 |
2 files changed, 0 insertions, 275 deletions
diff --git a/package/utils/usbreset/Makefile b/package/utils/usbreset/Makefile deleted file mode 100644 index bf3160cb1a..0000000000 --- a/package/utils/usbreset/Makefile +++ /dev/null @@ -1,39 +0,0 @@ -# -# Copyright (C) 2011-2014 OpenWrt.org -# -# This is free software, licensed under the GNU General Public License v2. -# See /LICENSE for more information. -# - -include $(TOPDIR)/rules.mk - -PKG_NAME:=usbreset -PKG_RELEASE:=5 - -include $(INCLUDE_DIR)/package.mk - -define Package/usbreset - SECTION:=utils - CATEGORY:=Utilities - TITLE:=Utility to send a USB port reset to a USB device - MAINTAINER:=Jo-Philipp Wich <xm@subsignal.org> -endef - -define Package/usbreset/description - This package contains the small usbreset utility which - can be used to send a USB port reset to a USB device - - useful for debugging or to force re-detection of particular - devices. -endef - -define Build/Compile - $(TARGET_CC) $(TARGET_CFLAGS) -Wall \ - -o $(PKG_BUILD_DIR)/usbreset $(PKG_BUILD_DIR)/usbreset.c -endef - -define Package/usbreset/install - $(INSTALL_DIR) $(1)/usr/bin - $(INSTALL_BIN) $(PKG_BUILD_DIR)/usbreset $(1)/usr/bin/ -endef - -$(eval $(call BuildPackage,usbreset)) diff --git a/package/utils/usbreset/src/usbreset.c b/package/utils/usbreset/src/usbreset.c deleted file mode 100644 index dc2df3cb3b..0000000000 --- a/package/utils/usbreset/src/usbreset.c +++ /dev/null @@ -1,236 +0,0 @@ -/* usbreset -- send a USB port reset to a USB device */ - -/* - -http://marc.info/?l=linux-usb-users&m=116827193506484&w=2 - -and needs mounted usbfs filesystem - - sudo mount -t usbfs none /proc/bus/usb - -There is a way to suspend a USB device. In order to use it, -you must have a kernel with CONFIG_PM_SYSFS_DEPRECATED turned on. To -suspend a device, do (as root): - - echo -n 2 >/sys/bus/usb/devices/.../power/state - -where the "..." is the ID for your device. To unsuspend, do the same -thing but with a "0" instead of the "2" above. - -Note that this mechanism is slated to be removed from the kernel within -the next year. Hopefully some other mechanism will take its place. - -> To reset a -> device? - -Here's a program to do it. You invoke it as either - - usbreset /proc/bus/usb/BBB/DDD -or - usbreset /dev/usbB.D - -depending on how your system is set up, where BBB and DDD are the bus and -device address numbers. - -Alan Stern - -*/ - -#include <stdio.h> -#include <stdlib.h> -#include <stdbool.h> -#include <unistd.h> -#include <fcntl.h> -#include <errno.h> -#include <string.h> -#include <ctype.h> -#include <limits.h> -#include <dirent.h> -#include <sys/ioctl.h> -#include <sys/types.h> - -#include <linux/usbdevice_fs.h> - - -static char *usbfs = NULL; - -struct usbentry { - int bus_num; - int dev_num; - int vendor_id; - int product_id; - char vendor_name[128]; - char product_name[128]; -}; - - -static char *sysfs_attr(const char *dev, const char *attr) -{ - int fd, len = 0; - char path[PATH_MAX]; - static char buf[129]; - - memset(buf, 0, sizeof(buf)); - snprintf(path, sizeof(path) - 1, "/sys/bus/usb/devices/%s/%s", dev, attr); - - if ((fd = open(path, O_RDONLY)) >= 0) - { - len = read(fd, buf, sizeof(buf) - 1); - close(fd); - } - - while (--len > 0 && isspace(buf[len])) - buf[len] = 0; - - return (len >= 0) ? buf : NULL; -} - -static struct usbentry * parse_devlist(DIR *d) -{ - char *attr; - struct dirent *e; - static struct usbentry dev; - - do { - e = readdir(d); - - if (!e) - return NULL; - } - while(!isdigit(e->d_name[0]) || strchr(e->d_name, ':')); - - memset(&dev, 0, sizeof(dev)); - - if ((attr = sysfs_attr(e->d_name, "busnum")) != NULL) - dev.bus_num = strtoul(attr, NULL, 10); - - if ((attr = sysfs_attr(e->d_name, "devnum")) != NULL) - dev.dev_num = strtoul(attr, NULL, 10); - - if ((attr = sysfs_attr(e->d_name, "idVendor")) != NULL) - dev.vendor_id = strtoul(attr, NULL, 16); - - if ((attr = sysfs_attr(e->d_name, "idProduct")) != NULL) - dev.product_id = strtoul(attr, NULL, 16); - - if ((attr = sysfs_attr(e->d_name, "manufacturer")) != NULL) - strcpy(dev.vendor_name, attr); - - if ((attr = sysfs_attr(e->d_name, "product")) != NULL) - strcpy(dev.product_name, attr); - - if (dev.bus_num && dev.dev_num && dev.vendor_id && dev.product_id) - return &dev; - - return NULL; -} - -static void list_devices(void) -{ - DIR *devs = opendir("/sys/bus/usb/devices"); - struct usbentry *dev; - - if (!devs) - return; - - while ((dev = parse_devlist(devs)) != NULL) - { - printf(" Number %03d/%03d ID %04x:%04x %s\n", - dev->bus_num, dev->dev_num, - dev->vendor_id, dev->product_id, - dev->product_name); - } - - closedir(devs); -} - -struct usbentry * find_device(int *bus, int *dev, - int *vid, int *pid, - const char *product) -{ - DIR *devs = opendir("/sys/bus/usb/devices"); - - struct usbentry *e, *match = NULL; - - if (!devs) - return NULL; - - while ((e = parse_devlist(devs)) != NULL) - { - if ((bus && (e->bus_num == *bus) && (e->dev_num == *dev)) || - (vid && (e->vendor_id == *vid) && (e->product_id == *pid)) || - (product && !strcasecmp(e->product_name, product))) - { - match = e; - break; - } - } - - closedir(devs); - - return match; -} - -static void reset_device(struct usbentry *dev) -{ - int fd; - char path[PATH_MAX]; - - snprintf(path, sizeof(path) - 1, "/dev/bus/usb/%03d/%03d", - dev->bus_num, dev->dev_num); - - printf("Resetting %s ... ", dev->product_name); - - if ((fd = open(path, O_WRONLY)) > -1) - { - if (ioctl(fd, USBDEVFS_RESET, 0) < 0) - printf("failed [%s]\n", strerror(errno)); - else - printf("ok\n"); - - close(fd); - } - else - { - printf("can't open [%s]\n", strerror(errno)); - } -} - - -int main(int argc, char **argv) -{ - int id1, id2; - struct usbentry *dev; - - if ((argc == 2) && (sscanf(argv[1], "%3d/%3d", &id1, &id2) == 2)) - { - dev = find_device(&id1, &id2, NULL, NULL, NULL); - } - else if ((argc == 2) && (sscanf(argv[1], "%4x:%4x", &id1, &id2) == 2)) - { - dev = find_device(NULL, NULL, &id1, &id2, NULL); - } - else if ((argc == 2) && strlen(argv[1]) < 128) - { - dev = find_device(NULL, NULL, NULL, NULL, argv[1]); - } - else - { - printf("Usage:\n" - " usbreset PPPP:VVVV - reset by product and vendor id\n" - " usbreset BBB/DDD - reset by bus and device number\n" - " usbreset \"Product\" - reset by product name\n\n" - "Devices:\n"); - list_devices(); - return 1; - } - - if (!dev) - { - fprintf(stderr, "No such device found\n"); - return 1; - } - - reset_device(dev); - return 0; -} |