| VCHIQ(4) | Device Drivers Manual | VCHIQ(4) |
vchiq —
vchiq* at simplebus?
vchiq* at acpi?
vchiq driver provides support for the VideoCore 4
GPU messaging interface in Broadcom SoCs found in boards such as the Raspberry
Pi.
Libraries in pkgsrc provide OpenGL ES support and video decoding acceleration for the VideoCore 4 using the /dev/vchiq interface exposed to userland.
Audio output support is provided by the kernel through vcaudio(4), which uses this messaging interface to the GPU internally.
Debugging information may be obtained reading the device with cat(1). eg:
cat /dev/vchiqInformation such as slots and usage by particular functions of the VideoCore 4 device are displayed.
vchiq device driver appeared in
NetBSD 7.0.
| December 11, 2021 | NetBSD 10.1 |