Re: [git pull] Input updates for v4.12-rc4

On Sat, Jun 10, 2017 at 12:42:13PM +0200, Damjan Georgievski wrote:

quoted

- mark "guest" RMI device as pass-through port to avoid "phantom" ALPS
  toouchpad on newer Lenovo Carbons

What's the end game for supporting these devices?

With the latest HEAD of Linus, first I get:
» Jun 10 12:19:17 cambrian kernel: psmouse serio1: synaptics: Your
touchpad (PNP: LEN0072 PNP0f13) says it can support a different bus.
If i2c-hid and hid-rmi are not used, you might want to try setting
psmouse.synaptics_intertouch to 1 and report this to
linux-input@vger.kernel.org.

Then if I patch drivers/input/mouse/synaptics.c and add "LEN0072" to
smbus_pnp_ids, this strange thing happens:

[    8.526635] psmouse serio1: synaptics: queried max coordinates: x
[..5676], y [..4760]
[    8.555746] psmouse serio1: synaptics: queried min coordinates: x
[1266..], y [1094..]
[    8.555750] psmouse serio1: synaptics: Trying to set up SMBus access
[    8.615774] rmi4_f01 rmi4-00.fn01: found RMI device, manufacturer:
Synaptics, product: TM3289-002, fw id: 2492434
[    8.679863] input: Synaptics TM3289-002 as /devices/rmi4-00/input/input18
[    8.682660] mousedev: PS/2 mouse device common for all mice
… snipped …
[  107.225549] input: ImPS/2 Generic Wheel Mouse as
/devices/rmi4-00/rmi4-00.fn03/serio2/input/input20

Notice how the trackpoint only appeared 100 seconds after boot (X was
already started and initially the trackpoint was not listed in xinput)

100 seconds is quire ridiculous. Could you please post your entire boot
log so we can understand what happened there.

Thanks.

-- 
Dmitry