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| author | Ricardo Ribalda <ribalda@chromium.org> | 2022-12-06 00:15:04 +0100 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2023-01-15 23:45:10 +0200 |
| commit | 16045708a3ff0266b1b8cca6198ea50eb80fff6a (patch) | |
| tree | 1750c3ed4e2c8b545c86cfede2a1fe7180bc579d /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | media: uvcvideo: Remove void casting for the status endpoint (diff) | |
| download | linux-16045708a3ff0266b1b8cca6198ea50eb80fff6a.tar.gz linux-16045708a3ff0266b1b8cca6198ea50eb80fff6a.zip | |
media: uvcvideo: Recover stalled ElGato devices
Elgato Cam Link 4k can be in a stalled state if the resolution of
the external source has changed while the firmware initializes.
Once in this state, the device is useless until it receives a
USB reset. It has even been observed that the stalled state will
continue even after unplugging the device.
lsusb -v
Bus 002 Device 002: ID 0fd9:0066 Elgato Systems GmbH Cam Link 4K
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 3.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 9
idVendor 0x0fd9 Elgato Systems GmbH
idProduct 0x0066
bcdDevice 0.00
iManufacturer 1 Elgato
iProduct 2 Cam Link 4K
iSerial 4 0005AC52FE000
bNumConfigurations 1
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions