User talk:JPwnx

Lib-Usb Command? You Tell Me!

/* testlibusb.c from LQ*/

1. include <stdio.h>
2. include <string.h>
3. include <usb.h>

void print_endpoint(struct usb_endpoint_descriptor *endpoint) { printf(" bEndpointAddress: %02xh\n", endpoint->bEndpointAddress); printf(" bmAttributes: %02xh\n", endpoint->bmAttributes); printf(" wMaxPacketSize: %d\n", endpoint->wMaxPacketSize); printf(" bInterval: %d\n", endpoint->bInterval); printf(" bRefresh: %d\n", endpoint->bRefresh); printf(" bSynchAddress: %d\n", endpoint->bSynchAddress); }

void print_altsetting(struct usb_interface_descriptor *interface) { int i;

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

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

void print_interface(struct usb_interface *interface) { int i;

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

void print_configuration(struct usb_config_descriptor *config) { int i;

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

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

int main(void) { struct usb_bus *bus; struct usb_device *dev;

usb_init(); usb_find_busses(); usb_find_devices();

printf("bus/device idVendor/idProduct\n");

for (bus = usb_busses; bus; bus = bus->next) { for (dev = bus->devices; dev; dev = dev->next) { int ret, i; char string[256]; usb_dev_handle *udev;

printf("%s/%s %04X/%04X\n", bus->dirname, dev->filename, dev->descriptor.idVendor, dev->descriptor.idProduct);

udev = usb_open(dev); if (udev) { if (dev->descriptor.iManufacturer) { ret = usb_get_string_simple(udev, dev->descriptor.iManufacturer, string, sizeof(string)); if (ret > 0) printf("- Manufacturer : %s\n", string); else printf("- Unable to fetch manufacturer string\n"); }

if (dev->descriptor.iProduct) { ret = usb_get_string_simple(udev, dev->descriptor.iProduct, string, sizeof(string)); if (ret > 0) printf("- Product : %s\n", string); else printf("- Unable to fetch product string\n"); }

if (dev->descriptor.iSerialNumber) { ret = usb_get_string_simple(udev, dev->descriptor.iSerialNumber, string, sizeof(string)); if (ret > 0) printf("- Serial Number: %s\n", string); else printf("- Unable to fetch serial number string\n"); }

usb_close (udev); }

if (!dev->config) { printf(" Couldn't retrieve descriptors\n"); continue; }

for (i = 0; i < dev->descriptor.bNumConfigurations; i++) print_configuration(&dev->config[i]); } }