66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
/* HID Listen, http://www.pjrc.com/teensy/hid_listen.html
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* Listens (and prints) all communication received from a USB HID device,
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* which is useful for view debug messages from the Teensy USB Board.
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* Copyright 2008, PJRC.COM, LLC
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*
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* You may redistribute this program and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see http://www.gnu.org/licenses/
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "rawhid.h"
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static void delay_ms(unsigned int msec)
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{
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usleep(msec * 1000);
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}
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int main(void)
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{
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unsigned char buf[64],prev;
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rawhid_t *hid;
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int num, count;
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printf("Waiting for device:");
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fflush(stdout);
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prev=0;
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while (1) {
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hid = rawhid_open_only1(0x16c0, 0x08b4, 0,0);
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if (hid == NULL) {
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printf(".");
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fflush(stdout);
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delay_ms(1000);
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continue;
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}
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printf("\nListening:\n");
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while (1) {
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num = rawhid_read(hid, buf, sizeof(buf), 200);
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if (num < 0) break;
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if (num == 0) continue;
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if(prev==buf[0]) continue;
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prev=buf[0];
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printf("RX:");
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for (count=0; count<num; count++) {
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printf(" 0x%02X",buf[count]);
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}
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printf("\n");
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}
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rawhid_close(hid);
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printf("\nDevice disconnected.\nWaiting for new device:");
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}
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return 0;
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}
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