This is a note to let you know that I've just added the patch titled
USB: quirks: Add no-lpm quirk for Raydium touchscreens
to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-linus branch.
The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.
If you have any questions about this process, please let me know.
From deefd24228a172d1b27d4a9adbfd2cdacd60ae64 Mon Sep 17 00:00:00 2001
From: Kai-Heng Feng kai.heng.feng@canonical.com Date: Fri, 26 Oct 2018 13:33:15 +0800 Subject: USB: quirks: Add no-lpm quirk for Raydium touchscreens
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-to...
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 --- drivers/usb/core/quirks.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 64df444af229..f9ff03e6af93 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -420,6 +420,11 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x2040, 0x7200), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS },
+ /* Raydium Touchscreen */ + { USB_DEVICE(0x2386, 0x3114), .driver_info = USB_QUIRK_NO_LPM }, + + { USB_DEVICE(0x2386, 0x3119), .driver_info = USB_QUIRK_NO_LPM }, + /* DJI CineSSD */ { USB_DEVICE(0x2ca3, 0x0031), .driver_info = USB_QUIRK_NO_LPM },