drath/libratbag
1
0
Fork 1
mirror of https://github.com/libratbag/libratbag.git synced 2026-11-07 23:23:52 +01:00
Code Issues Projects Releases Wiki Activity

hidpp10: ignore the response length when comparing expected vs real response

Browse Source 
The request length doesn't tell us what the expected response length is, e.g.
0x63 (current resolution) is set with a long request but replies with a short
ack.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer
2015-10-13 12:16:59 +10:00
parent 2f5b49fb68
commit c37f45f125
1 changed files with 3 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
src/hidpp10.c
View File

@@ -126,22 +126,9 @@ hidpp10_request_command(struct hidpp10_device *dev, union hidpp10_message *msg)
/* create the expected header */
expected_header = *msg;
switch (msg->msg.sub_id) {
case SET_REGISTER_REQ:
expected_header.msg.report_id = REPORT_ID_SHORT;
break;
case GET_REGISTER_REQ:
expected_header.msg.report_id = REPORT_ID_SHORT;
break;
case SET_LONG_REGISTER_REQ:
expected_header.msg.report_id = REPORT_ID_LONG;
break;
case GET_LONG_REGISTER_REQ:
expected_header.msg.report_id = REPORT_ID_LONG;
break;
}
log_buf_raw(ratbag, " expected_header: ", expected_header.data, 4);
/* response message length doesn't depend on request length */
log_buf_raw(ratbag, " expected_header: ?? ", &expected_header.data[1], 3);
log_buf_raw(ratbag, " expected_error_dev: ", expected_error_dev.data, SHORT_MESSAGE_LENGTH);
/* Send the message to the Device */
@@ -170,7 +157,7 @@ hidpp10_request_command(struct hidpp10_device *dev, union hidpp10_message *msg)
read_buffer.msg.device_idx = msg->msg.device_idx;
/* actual answer */
if (!memcmp(read_buffer.data, expected_header.data, 4))
if (!memcmp(&read_buffer.data[1], &expected_header.data[1], 3))
break;
/* error */