]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/commit
USB: quirks: Add no-lpm quirk for Raydium touchscreens
authorKai-Heng Feng <kai.heng.feng@canonical.com>
Thu, 8 Nov 2018 07:48:00 +0000 (08:48 +0100)
committerKleber Sacilotto de Souza <kleber.souza@canonical.com>
Mon, 14 Jan 2019 09:28:55 +0000 (09:28 +0000)
commit676b148958e18a6df8476b3d4d964ec4acdc18a3
tree8a95db90120508c2c1c40186357e4e771c26ad56
parentfec6efe19062481aa3d805dead3dbb3fa1026165
USB: quirks: Add no-lpm quirk for Raydium touchscreens

BugLink: https://bugs.launchpad.net/bugs/1802248
Raydium USB touchscreen fails to set config if LPM is enabled:
[    2.030658] usb 1-8: New USB device found, idVendor=2386, idProduct=3119
[    2.030659] usb 1-8: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    2.030660] usb 1-8: Product: Raydium Touch System
[    2.030661] usb 1-8: Manufacturer: Raydium Corporation
[    7.132209] usb 1-8: can't set config #1, error -110

Same behavior can be observed on 2386:3114.

Raydium claims the touchscreen supports LPM under Windows, so I used
Microsoft USB Test Tools (MUTT) [1] to check its LPM status. MUTT shows
that the LPM doesn't work under Windows, either. So let's just disable LPM
for Raydium touchscreens.

[1] https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/usb-test-tools

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(backported from commit deefd24228a172d1b27d4a9adbfd2cdacd60ae64)
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: Anthony Wong <anthony.wong@canonical.com>
Acked-By: AceLan Kao <acelan.kao@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
drivers/usb/core/quirks.c