最終更新:2017-06-01 (木) 15:14:52 (2521d)  

libusb-0.1/サンプルコード
Top / libusb-0.1 / サンプルコード

http://penguin.tantin.jp/hard/libusbについて.html

メモ

  • ドキュメントをビルドすると入ってる 
    struct usb_bus *busses;

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

busses = usb_get_busses();
    struct usb_bus *bus;
int c, i, a;

/* ... */

for (bus = busses; bus; bus = bus->next) {
	struct usb_device *dev;

	for (dev = bus->devices; dev; dev = dev->next) {
		/* Check if this device is a printer */
		if (dev->descriptor.bDeviceClass == 7) {
			/* Open the device, claim the interface and do your processing */
			...
		}

		/* Loop through all of the configurations */
		for (c = 0; c < dev->descriptor.bNumConfigurations; c++) {
			/* Loop through all of the interfaces */
			for (i = 0; i < dev->config[c].bNumInterfaces; i++) {
				/* Loop through all of the alternate settings */
				for (a = 0; a < dev->config[c].interface[i].num_altsetting; a++) {
					/* Check if this interface is a printer */
					if (dev->config[c].interface[i].altsetting[a].bInterfaceClass == 7) {
						/* Open the device, set the alternate setting, claim the interface and do your processing */
						...
					}
				}
			}
		}
	}
}
  • libusb-0.1/testlibusb.c
↑

ビルド

  • gcc test.c -lusb && sudo ./a.out
↑

処理

↑

初期化

↑

開く




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