usbtest.c (1102B)
1 /* rswdp.c 2 * 3 * Copyright 2011 Brian Swetland <swetland@frotz.net> 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 #include <stdio.h> 19 #include <stdlib.h> 20 #include <unistd.h> 21 #include <string.h> 22 23 #include "usb.h" 24 25 int main(int argc, char **argv) { 26 usb_handle *usb; 27 char buf[4096]; 28 int n, sz = 64; 29 30 if (argc > 1) { 31 sz = atoi(argv[1]); 32 if ((sz < 1) || (sz > 4096)) 33 return -1; 34 } 35 36 usb = usb_open(0x18d1, 0xdb01, 0); 37 if (usb == 0) { 38 fprintf(stderr, "cannot find device\n"); 39 return -1; 40 } 41 42 for (n = 0; n < sz; n++) 43 buf[n] = n; 44 45 usb_write(usb, buf, sz); 46 return 0; 47 } 48 49 50