serio_pause_rx(ps2dev->serio);
+ /* Some mice do not ACK the "get ID" command, prepare to handle this. */
ps2dev->flags = command == PS2_CMD_GETID ? PS2_FLAG_WAITID : 0;
ps2dev->cmdcnt = receive;
- if (receive && param)
- for (i = 0; i < receive; i++)
- ps2dev->cmdbuf[(receive - 1) - i] = param[i];
+ if (receive) {
+ /* Indicate that we expect response to the command. */
+ ps2dev->flags |= PS2_FLAG_CMD | PS2_FLAG_CMD1;
+ if (param)
+ for (i = 0; i < receive; i++)
+ ps2dev->cmdbuf[(receive - 1) - i] = param[i];
+ }
/*
- * Some devices (Synaptics) peform the reset before
+ * Some devices (Synaptics) perform the reset before
* ACKing the reset command, and so it can take a long
* time before the ACK arrives.
*/
return true;
}
- if (!ps2dev->nak) {
+ if (!ps2dev->nak)
ps2dev->flags &= ~PS2_FLAG_NAK;
- if (ps2dev->cmdcnt)
- ps2dev->flags |= PS2_FLAG_CMD | PS2_FLAG_CMD1;
- }
ps2dev->flags &= ~PS2_FLAG_ACK;
wake_up(&ps2dev->wait);