4 #include <linux/types.h>
5 #include <linux/hiddev.h>
16 unsigned char data[64];
24 int send_msg(const struct msg *msg, int fd, int usage_code)
28 if (msg->direction != OUT) {
29 printf("Message direction is not OUT\n");
35 print_hex(msg->data + 1, datalen(msg->data) - 1);
36 print_ascii(msg->data + 1, datalen(msg->data) - 1);
38 ret = hiddev_write(msg->data, fd, usage_code);
45 int read_and_verify(struct msg *msg, int fd)
47 unsigned char buf[64];
51 ret = hiddev_read(buf + offset, sizeof(buf) - offset, fd);
59 memcpy(msg->data, buf, sizeof(buf));
60 printf("Got data %d: ", datalen(buf));
61 // print_hex(buf, datalen(buf));
62 print_ascii(buf, datalen(buf));
71 read_and_verify(&msg, fd);
72 if (datalen(msg.data) <= 36)
79 #define SET_FIRST_BYTE(byte) \
81 memset(&msg.data, 0, sizeof(msg.data)); \
82 msg.data[4] = (byte); \
86 #define SET_BYTE(idx, byte) \
88 msg.data[(idx) + 4] = (byte); \
92 #define SET_BYTES(byte) msg.data[j++] = (byte)
94 int send_pattern(int fd, int uc, unsigned char byte1, unsigned char byte2)
101 SET_FIRST_BYTE(0x01);
103 send_msg(&msg, fd, uc);
108 send_msg(&msg, fd, uc);
113 send_msg(&msg, fd, uc);
116 SET_FIRST_BYTE(0x02);
119 send_msg(&msg, fd, uc);
124 send_msg(&msg, fd, uc);
130 int communicate(int fd, int uc)
137 SET_FIRST_BYTE(0x01);
139 send_msg(&msg, fd, uc);
143 send_msg(&msg, fd, uc);
147 for (i = 0; i < 6; i++) {
149 send_msg(&msg, fd, uc);
154 send_msg(&msg, fd, uc);
159 send_msg(&msg, fd, uc);
162 send_pattern(fd, uc, 'R', 'A');
163 send_pattern(fd, uc, 'R', 'C');
164 send_pattern(fd, uc, 'R', 'D');
165 send_pattern(fd, uc, 'R', 'G');
166 send_pattern(fd, uc, 'R', 'I');
167 send_pattern(fd, uc, 'R', 'M');
168 send_pattern(fd, uc, 'R', 'P');
169 send_pattern(fd, uc, 'R', 'R');
170 send_pattern(fd, uc, 'R', 'S');
171 send_pattern(fd, uc, 'R', 'T');
172 send_pattern(fd, uc, 'R', 'U');
173 send_pattern(fd, uc, 'R', 'V');
174 send_pattern(fd, uc, 'R', 'W');
175 send_pattern(fd, uc, 'R', 'X');
176 send_pattern(fd, uc, 'W', 'K');
179 SET_FIRST_BYTE(0x08);
188 send_msg(&msg, fd, uc);
192 SET_FIRST_BYTE(0x02);
195 send_msg(&msg, fd, uc);
200 send_msg(&msg, fd, uc);
205 send_msg(&msg, fd, uc);
210 send_msg(&msg, fd, uc);
215 send_msg(&msg, fd, uc);
218 send_pattern(fd, uc, 'R', 'Z');
221 SET_FIRST_BYTE(0x01);
223 send_msg(&msg, fd, uc);
228 send_msg(&msg, fd, uc);
233 send_msg(&msg, fd, uc);
238 send_msg(&msg, fd, uc);
242 send_msg(&msg, fd, uc);
247 send_msg(&msg, fd, uc);
251 send_msg(&msg, fd, uc);
255 send_msg(&msg, fd, uc);
260 send_msg(&msg, fd, uc);
261 read_and_verify(&in, fd);
262 } while (datalen(in.data) > 45);
267 int main(int argc, char *argv[])
271 fd = hiddev_open(argv[1], &usage_code);
275 communicate(fd, usage_code);