reset.c

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

#define MY_VID 0x1209
#define MY_PID 0xb1c0

int main() {
    libusb_device **devs;
    libusb_context *ctx = NULL;
    int r;
    ssize_t cnt;
    
    r = libusb_init(&ctx);
    if (r < 0) {
        printf("Init Error %d\n", r);
        return 1;
    }

    cnt = libusb_get_device_list(ctx, &devs);
    if (cnt < 0) {
        printf("Get Device List Error\n");
        libusb_exit(ctx);
        return 1;
    }

    libusb_device *found = NULL;
    struct libusb_device_descriptor desc;
    
    for (ssize_t i = 0; i < cnt; i++) {
        libusb_device *device = devs[i];
        r = libusb_get_device_descriptor(device, &desc);
        if (r < 0) {
            printf("Failed to get device descriptor\n");
            continue;
        }
        if (desc.idVendor == MY_VID && desc.idProduct == MY_PID) {
            found = device;
            break;
        }
    }

    if (!found) {
        printf("Device not found\n");
        goto end;
    }
    
    printf("Device found: VID=0x%04x, PID=0x%04x\n", desc.idVendor, desc.idProduct);

	libusb_device_handle *handle;
	r = libusb_open(found, &handle);
	if (r != 0 || handle == NULL) {
		printf("Failed to open device: %s\n", libusb_error_name(r));
		goto end;
	}
	printf("Device opened\n");
	
	printf("Resetting\n");
	r = libusb_reset_device(handle);
	if (r < 0) {
        printf("Reset Error %d\n", r);
        goto end;
    }
    printf("Done\n");
    
    libusb_close(handle);

end:
    libusb_free_device_list(devs, 1);
    libusb_exit(ctx);

    return 0;
}

run.sh

CFLAGS=`pkg-config --cflags --libs libusb-1.0`
gcc -o reset reset.c $CFLAGS
./reset