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| author | Devin Heitmueller <dheitmueller@kernellabs.com> | 2017-06-27 13:08:51 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-29 14:49:06 +0200 |
| commit | 6836796de4019944f4ba4c99a360e8250fd2e735 (patch) | |
| tree | 22078bda16045ccd92091611bbb137d5c6eea1f0 /drivers/usb/core | |
| parent | c94dc34f771a25b8c3e0955147fdc4f5e3d79908 (diff) | |
| download | linux-6836796de4019944f4ba4c99a360e8250fd2e735.tar.gz | |
Add USB quirk for HVR-950q to avoid intermittent device resets
The USB core and sysfs will attempt to enumerate certain parameters which are unsupported by the au0828 - causing inconsistent behavior and sometimes causing the chip to reset. Avoid making these calls. This problem manifested as intermittent cases where the au8522 would be reset on analog video startup, in particular when starting up ALSA audio streaming in parallel - the sysfs entries created by snd-usb-audio on streaming startup would result in unsupported control messages being sent during tuning which would put the chip into an unknown state. Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core')
| -rw-r--r-- | drivers/usb/core/quirks.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 96b21b0dac1e..3116edfcdc18 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -223,6 +223,10 @@ static const struct usb_device_id usb_quirk_list[] = { /* Blackmagic Design UltraStudio SDI */ { USB_DEVICE(0x1edb, 0xbd4f), .driver_info = USB_QUIRK_NO_LPM }, + /* Hauppauge HVR-950q */ + { USB_DEVICE(0x2040, 0x7200), .driver_info = + USB_QUIRK_CONFIG_INTF_STRINGS }, + /* INTEL VALUE SSD */ { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME }, |