src/sys/dev/usb/video, branch main FreeBSD source tree uvideo: increase isochronous transfer depth for throughput 2026-06-16T11:21:05+00:00 Baptiste Daroussin bapt@FreeBSD.org 2026-05-18T21:44:27+00:00 3b6f833c95eb65b29a9f506928467236a11d5169 Increase NFRAMES_MAX from 40 to 128 and IXFERS from 3 to 5 to keep more packets in flight on the USB bus. This brings throughput from ~13.5 MB/s to ~21 MB/s (for comparison on the same camera webcamd provided ~20MB/s. The linux driver also uses 5 IXFERS (but only 32 NFRAMES_MAX) Tested by: manu 
Increase NFRAMES_MAX from 40 to 128 and IXFERS from 3 to 5 to keep
more packets in flight on the USB bus.  This brings throughput from
~13.5 MB/s to ~21 MB/s (for comparison on the same camera webcamd
provided ~20MB/s.

The linux driver also uses 5 IXFERS (but only 32 NFRAMES_MAX)

Tested by:	manu
uvideo: add missing formats to be in par with webcamd's uvcvideo 2026-06-16T11:21:03+00:00 Baptiste Daroussin bapt@FreeBSD.org 2026-05-18T20:17:34+00:00 8bc06ffbbd80533eda0784d2a6f5a1476f9d550c 






uvideo: add Camera Terminal controls
2026-06-16T11:21:01+00:00

Baptiste Daroussin
bapt@FreeBSD.org

2026-05-06T16:28:27+00:00

d0450cbec7e66ee56fd48c6482fd3bd9fb6549dc

Implement UVC Camera Terminal (CT) controls per UVC 1.5 specification
Table A-12. This adds support for camera-specific controls that are
separate from the Processing Unit controls already supported.

Reviewed by:	manu
Differential Revision:	https://reviews.freebsd.org/D56962





Implement UVC Camera Terminal (CT) controls per UVC 1.5 specification
Table A-12. This adds support for camera-specific controls that are
separate from the Processing Unit controls already supported.

Reviewed by:	manu
Differential Revision:	https://reviews.freebsd.org/D56962







uvideo: add kqueue support
2026-06-16T11:20:57+00:00

Baptiste Daroussin
bapt@FreeBSD.org

2026-05-06T16:22:07+00:00

54df18cbb400e6394edad8abab0e5cb3a97e4df3

Add EVFILT_READ kqueue filter so applications using kqueue/kevent
can efficiently wait for video frames instead of polling.

Reviewed by:	manu
Differential Revision:	https://reviews.freebsd.org/D56961





Add EVFILT_READ kqueue filter so applications using kqueue/kevent
can efficiently wait for video frames instead of polling.

Reviewed by:	manu
Differential Revision:	https://reviews.freebsd.org/D56961







uvideo: import uvideo(4) driver from OpenBSD
2026-06-16T11:20:52+00:00

Baptiste Daroussin
bapt@FreeBSD.org

2026-05-05T20:29:47+00:00

b711ef9c75ba71d6258d028aaf7b119ccfffaa0a

Port the uvideo(4) driver from OpenBSD. This provides
native USB Video Class (UVC) support for webcams and video capture
devices.

The main changes are adaptation for:
- USB transfer callback model
- isoc data extraction via usbd_copy_out(),
- V4L2 struct alignment for ABI compatibility with v4l_compat.

Note that this implementation can coexist with webcamd.

Reviewed by:	manu
Differential Revision:	https://reviews.freebsd.org/D56960





Port the uvideo(4) driver from OpenBSD. This provides
native USB Video Class (UVC) support for webcams and video capture
devices.

The main changes are adaptation for:
- USB transfer callback model
- isoc data extraction via usbd_copy_out(),
- V4L2 struct alignment for ABI compatibility with v4l_compat.

Note that this implementation can coexist with webcamd.

Reviewed by:	manu
Differential Revision:	https://reviews.freebsd.org/D56960







Use bus_generic_detach instead of device_delete_children in detach
2025-01-02T18:24:28+00:00

John Baldwin
jhb@FreeBSD.org

2025-01-02T18:24:28+00:00

3ddaf8200bc90b1410755ebac7b5c979ea90a2f6

While here, check for errors from bus_generic_detach and move it to
the start of detach if necessary.

Differential Revision:	https://reviews.freebsd.org/D47969





While here, check for errors from bus_generic_detach and move it to
the start of detach if necessary.

Differential Revision:	https://reviews.freebsd.org/D47969







newbus: globally replace device_add_child(..., -1) with DEVICE_UNIT_ANY
2024-07-25T04:22:58+00:00

Warner Losh
imp@FreeBSD.org

2024-07-25T04:22:58+00:00

5b56413d04e608379c9a306373554a8e4d321bc0

Sponsored by:		Netflix





Sponsored by:		Netflix







sys: Remove $FreeBSD$: one-line .c comment pattern
2023-08-16T17:54:24+00:00

Warner Losh
imp@FreeBSD.org

2023-08-16T17:54:24+00:00

71625ec9ad2a9bc8c09784fbd23b759830e0ee5f

Remove /^/[*/]\s*\$FreeBSD\$.*\n/





Remove /^/[*/]\s*\$FreeBSD\$.*\n/







usb(4): Fix a typo in a source code comment
2023-08-02T09:04:24+00:00

Gordon Bergling
gbe@FreeBSD.org

2023-08-02T09:04:24+00:00

a924b48579c7a0c794431fbd3f540ce56c4cd662

- s/determin/determine/

MFC after:	3 days





- s/determin/determine/

MFC after:	3 days







usb: Remove unused devclass arguments to DRIVER_MODULE.
2022-05-06T22:46:57+00:00

John Baldwin
jhb@FreeBSD.org

2022-05-06T22:46:57+00:00

bc9372d784c2bd4874f221bf7cd8072cb157dc71