Re: [PATCH] USB: quirks: Fix another ELAN touchscreen

From: Jiri Kosina
Date: Mon Nov 23 2015 - 09:52:31 EST


On Sat, 21 Nov 2015, Adrien Vergà wrote:

> Like other buggy models that had their fixes [1], the touchscreen with
> id 04f3:21b8 from ELAN Microelectronics needs the device-qualifier
> quirk. Otherwise, it fails to respond, blocks the boot for a random
> amount of time and pollutes dmesg with:
>
> [ 2887.373196] usb 1-5: new full-speed USB device number 41 using xhci_hcd
> [ 2889.502000] usb 1-5: unable to read config index 0 descriptor/start: -71
> [ 2889.502005] usb 1-5: can't read configurations, error -71
> [ 2889.654571] usb 1-5: new full-speed USB device number 42 using xhci_hcd
> [ 2891.783438] usb 1-5: unable to read config index 0 descriptor/start: -71
> [ 2891.783443] usb 1-5: can't read configurations, error -71

The drivers/hid part is

Acked-by: Jiri Kosina <jkosina@xxxxxxx>

Makes one wonder however whether we shouldn't be applying ALWAYS_POLL to
all ELAN devices by default anyway.

> [1]: See commits c68929f, 876af5d, d749947, a32c99e and dc703ec.
>
> Tested-by: Adrien Vergà <adrienverge@xxxxxxxxx>

You need signoff here as well so that the patch can be applied.

Thanks,

--
Jiri Kosina
SUSE Labs

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