Bug 199193
Summary: | UVC VGA WebCam: USB2.0 is listed as two video devices | ||
---|---|---|---|
Product: | Drivers | Reporter: | fademind |
Component: | USB | Assignee: | Greg Kroah-Hartman (greg) |
Status: | NEW --- | ||
Severity: | normal | CC: | fademind, seba.kerckhof, tasev.stefanoska |
Priority: | P1 | ||
Hardware: | All | ||
OS: | Linux | ||
Kernel Version: | linux416 4.16.r180324.g99fec39-1 | Subsystem: | |
Regression: | No | Bisected commit-id: |
Description
fademind
2018-03-24 14:34:28 UTC
On Sat, Mar 24, 2018 at 02:34:28PM +0000, bugzilla-daemon@bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=199193 > > Bug ID: 199193 > Summary: UVC VGA WebCam: USB2.0 is listed as two video devices > Product: Drivers > Version: 2.5 > Kernel Version: linux416 4.16.r180324.g99fec39-1 All USB bugs should be sent to the linux-usb@vger.kernel.org mailing list, and not entered into bugzilla. Please bring this issue up there, if it is still a problem in the latest kernel release. Thanks for feedback. E-Mail was sent. Regards Hi, I found the thread on http://www.spinics.net/lists/linux-usb/msg167290.html. But I don't now how to sent an e-mail for that particular thread on linux-usb@vger.kernel.org. This is just to report that i have the same bug on all laptop i have access (Asus UX31A, UX305FA, UX330UA). The bug started on kernel 4.16 and is not present on the previous kernel. So it should be easily reproducible on every laptop with an integrated webcam. Thanks, Tasev Apparently this is a 'feature' introduced by commit that went in kernel 4.16: 088ead25524583e2200aa99111bea2f66a86545a. media: uvcvideo: Add a metadata device node Some UVC video cameras contain metadata in their payload headers. This patch extracts that data, adding more clock synchronisation information, on both bulk and isochronous endpoints and makes it available to the user space on a separate video node, using the V4L2_CAP_META_CAPTURE capability and the V4L2_BUF_TYPE_META_CAPTURE buffer queue type. By default, only the V4L2_META_FMT_UVC pixel format is available from those nodes. However, cameras can be added to the device ID table to additionally specify their own metadata format, in which case that format will also become available from the metadata node. |