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| author | Aaron Ma <aaron.ma@canonical.com> | 2017-08-18 12:17:21 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-08-18 17:04:11 -0700 |
| commit | ec667683c532c93fb41e100e5d61a518971060e2 (patch) | |
| tree | faa3f0b351f1fd183a0a434c2c12c3338229c61a | |
| parent | 1d2226e45040ed4aee95b633cbd64702bf7fc2a1 (diff) | |
| download | linux-stable-ec667683c532c93fb41e100e5d61a518971060e2.tar.gz linux-stable-ec667683c532c93fb41e100e5d61a518971060e2.tar.bz2 linux-stable-ec667683c532c93fb41e100e5d61a518971060e2.zip | |
Input: trackpoint - add new trackpoint firmware ID
Synaptics add new TP firmware ID: 0x2 and 0x3, for now both lower 2 bits
are indicated as TP. Change the constant to bitwise values.
This makes trackpoint to be recognized on Lenovo Carbon X1 Gen5 instead
of it being identified as "PS/2 Generic Mouse".
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| -rw-r--r-- | drivers/input/mouse/trackpoint.c | 3 | ||||
| -rw-r--r-- | drivers/input/mouse/trackpoint.h | 3 |
2 files changed, 4 insertions, 2 deletions
diff --git a/drivers/input/mouse/trackpoint.c b/drivers/input/mouse/trackpoint.c index 20b5b21c1bba..0871010f18d5 100644 --- a/drivers/input/mouse/trackpoint.c +++ b/drivers/input/mouse/trackpoint.c @@ -265,7 +265,8 @@ static int trackpoint_start_protocol(struct psmouse *psmouse, unsigned char *fir if (ps2_command(&psmouse->ps2dev, param, MAKE_PS2_CMD(0, 2, TP_READ_ID))) return -1; - if (param[0] != TP_MAGIC_IDENT) + /* add new TP ID. */ + if (!(param[0] & TP_MAGIC_IDENT)) return -1; if (firmware_id) diff --git a/drivers/input/mouse/trackpoint.h b/drivers/input/mouse/trackpoint.h index 5617ed3a7d7a..88055755f82e 100644 --- a/drivers/input/mouse/trackpoint.h +++ b/drivers/input/mouse/trackpoint.h @@ -21,8 +21,9 @@ #define TP_COMMAND 0xE2 /* Commands start with this */ #define TP_READ_ID 0xE1 /* Sent for device identification */ -#define TP_MAGIC_IDENT 0x01 /* Sent after a TP_READ_ID followed */ +#define TP_MAGIC_IDENT 0x03 /* Sent after a TP_READ_ID followed */ /* by the firmware ID */ + /* Firmware ID includes 0x1, 0x2, 0x3 */ /* |