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| author |   Mantas Mikulėnas <grawity@gmail.com> | 2018-12-21 01:04:26 -0800 |
|---|---|---|
| committer |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-12-21 01:09:17 -0800 |
| commit | 7a71712293ba303aad928f580b89addb0be2892e (patch) | |
| tree | 2e463cc36ca707d6b75f4950cd19aafcf8efa20f /drivers/input | |
| parent | Input: elantech - disable elan-i2c for P52 and P72 (diff) | |
| download | linux-dev-7a71712293ba303aad928f580b89addb0be2892e.tar.xz linux-dev-7a71712293ba303aad928f580b89addb0be2892e.zip | |
Input: synaptics - enable SMBus for HP EliteBook 840 G4
dmesg reports that "Your touchpad (PNP: SYN3052 SYN0100 SYN0002 PNP0f13)
says it can support a different bus."
I've tested the offered psmouse.synaptics_intertouch=1 with 4.18.x and
4.19.x and it seems to work well. No problems seen with suspend/resume.
Also, it appears that RMI/SMBus mode is actually required for 3-4 finger
multitouch gestures to work -- otherwise they are not reported at all.
Information from dmesg in both modes:
psmouse serio3: synaptics: Touchpad model: 1, fw: 8.2, id: 0x1e2b1,
caps: 0xf00123/0x840300/0x2e800/0x0, board id: 3139, fw id: 2000742
psmouse serio3: synaptics: Trying to set up SMBus access
rmi4_smbus 6-002c: registering SMbus-connected sensor
rmi4_f01 rmi4-00.fn01: found RMI device,
manufacturer: Synaptics, product: TM3139-001, fw id: 2000742
Signed-off-by: Mantas Mikulėnas <grawity@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/mouse/synaptics.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index 7bdf8fc2c3b5..b6da0c1267e3 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -179,6 +179,7 @@ static const char * const smbus_pnp_ids[] = { "LEN0096", /* X280 */ "LEN0097", /* X280 -> ALPS trackpoint */ "LEN200f", /* T450s */ + "SYN3052", /* HP EliteBook 840 G4 */ "SYN3221", /* HP 15-ay000 */ NULL }; |