* ELAN1000 not working on Asus Zenbook UX305CA-EHM1
@ 2015-11-20 8:52 Benjamin Tissoires
2015-11-20 17:34 ` Dmitry Torokhov
0 siblings, 1 reply; 2+ messages in thread
From: Benjamin Tissoires @ 2015-11-20 8:52 UTC (permalink / raw)
To: Duson Lin; +Cc: Dmitry Torokhov, linux-input
Hi Duson,
A user reported a non working touchpad on his Asus Zenbook UX305CA.
The touchpad is the ELAN1000 which has been added to v4.3:
https://bugzilla.redhat.com/show_bug.cgi?id=1281990
In the logs, I see:
[ 16.636101] i2c_designware i2c_designware.0:
i2c_dw_handle_tx_abort: lost arbitration
[ 16.636110] elan_i2c i2c-ELAN1000:00: writing cmd (0x0005) failed: -11
[ 16.636113] elan_i2c i2c-ELAN1000:00: device reset failed: -11
[ 16.636115] elan_i2c i2c-ELAN1000:00: device initialize failed: -11
I wonder if you could have a look at this and tell us whether the
touchpad is failing (I mean the driver) or if the i2c bus driver is at
fault.
Cheers,
Benjamin
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: ELAN1000 not working on Asus Zenbook UX305CA-EHM1
2015-11-20 8:52 ELAN1000 not working on Asus Zenbook UX305CA-EHM1 Benjamin Tissoires
@ 2015-11-20 17:34 ` Dmitry Torokhov
0 siblings, 0 replies; 2+ messages in thread
From: Dmitry Torokhov @ 2015-11-20 17:34 UTC (permalink / raw)
To: Benjamin Tissoires; +Cc: Duson Lin, linux-input
On Fri, Nov 20, 2015 at 09:52:14AM +0100, Benjamin Tissoires wrote:
> Hi Duson,
>
> A user reported a non working touchpad on his Asus Zenbook UX305CA.
> The touchpad is the ELAN1000 which has been added to v4.3:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=1281990
>
> In the logs, I see:
>
> [ 16.636101] i2c_designware i2c_designware.0:
> i2c_dw_handle_tx_abort: lost arbitration
> [ 16.636110] elan_i2c i2c-ELAN1000:00: writing cmd (0x0005) failed: -11
> [ 16.636113] elan_i2c i2c-ELAN1000:00: device reset failed: -11
> [ 16.636115] elan_i2c i2c-ELAN1000:00: device initialize failed: -11
>
> I wonder if you could have a look at this and tell us whether the
> touchpad is failing (I mean the driver) or if the i2c bus driver is at
> fault.
The designware controller reports that it lost arbitration, as if there
were 2 masters on the same I2c bus, which is unlikely. I'd be looking
into i2c bus driver first.
Thanks.
--
Dmitry
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