diff options
| author | Dmitry Torokhov <dtor@insightbb.com> | 2006-09-14 01:31:27 -0400 |
|---|---|---|
| committer | Dmitry Torokhov <dtor@insightbb.com> | 2006-09-14 01:31:27 -0400 |
| commit | 9807879bfdc0c2b5106b4b378f5475c6a333d853 (patch) | |
| tree | 2a761ae4d03b35e371044014af4addcc23f326da /drivers/input/serio/libps2.c | |
| parent | a91eaa16df5cd6c552e3a4a6e40e60ffbd9be951 (diff) | |
Input: atkbd - support Microsoft Natural Elite Pro keyboards
Microsoft Natural Elite Pro keyboard produces unisual response to
the GET ID command - single byte 0xaa (normally keyboards produce
2-byte response). Fail GET ID command so atkbd gets a change to
do alternate probe.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/serio/libps2.c')
| -rw-r--r-- | drivers/input/serio/libps2.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c index ed202f2f251a..e0a2297a9d21 100644 --- a/drivers/input/serio/libps2.c +++ b/drivers/input/serio/libps2.c @@ -35,6 +35,7 @@ EXPORT_SYMBOL(ps2_schedule_command); EXPORT_SYMBOL(ps2_handle_ack); EXPORT_SYMBOL(ps2_handle_response); EXPORT_SYMBOL(ps2_cmd_aborted); +EXPORT_SYMBOL(ps2_is_keyboard_id); /* Work structure to schedule execution of a command */ struct ps2work { @@ -102,9 +103,9 @@ void ps2_drain(struct ps2dev *ps2dev, int maxbytes, int timeout) * known keyboard IDs. */ -static inline int ps2_is_keyboard_id(char id_byte) +int ps2_is_keyboard_id(char id_byte) { - static char keyboard_ids[] = { + const static char keyboard_ids[] = { 0xab, /* Regular keyboards */ 0xac, /* NCD Sun keyboard */ 0x2b, /* Trust keyboard, translated */ @@ -139,6 +140,19 @@ static int ps2_adjust_timeout(struct ps2dev *ps2dev, int command, int timeout) case PS2_CMD_GETID: /* + * Microsoft Natural Elite keyboard responds to + * the GET ID command as it were a mouse, with + * a single byte. Fail the command so atkbd will + * use alternative probe to detect it. + */ + if (ps2dev->cmdbuf[1] == 0xaa) { + serio_pause_rx(ps2dev->serio); + ps2dev->flags = 0; + serio_continue_rx(ps2dev->serio); + timeout = 0; + } + + /* * If device behind the port is not a keyboard there * won't be 2nd byte of ID response. */ |