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CONFIG_BCM2835_VCHIQ: BCM2835 VCHIQ

General informations

The Linux kernel configuration item CONFIG_BCM2835_VCHIQ has multiple definitions:

BCM2835 VCHIQ found in `drivers/staging/vc04_services/Kconfig`

The configuration item CONFIG_BCM2835_VCHIQ:

prompt: BCM2835 VCHIQ
type: tristate
depends on: CONFIG_HAS_DMA
defined in drivers/staging/vc04_services/Kconfig
found in Linux kernels: 4.12–4.20, 5.0–5.19, 6.0–6.12, 6.13-rc+HEAD
modules built: vchiq

Help text

Broadcom BCM2835 and similar SoCs have a VPU called VideoCore. This config enables the VCHIQ driver, which implements a messaging interface between the kernel and the firmware running on VideoCore. Other drivers use this interface to communicate to the VPU. More specifically, the VCHIQ driver is used by audio/video and camera drivers as well as for implementing MMAL API, which is in turn used by several multimedia services on the BCM2835 family of SoCs.

Defaults to Y when the Broadcom Videocore services are included in the build, N otherwise.

Videocore VCHIQ found in `drivers/staging/vc04_services/Kconfig`

The configuration item CONFIG_BCM2835_VCHIQ:

prompt: Videocore VCHIQ
type: tristate
depends on: ( CONFIG_HAS_DMA ) && ( CONFIG_OF ) && ( CONFIG_RASPBERRYPI_FIRMWARE || ( CONFIG_COMPILE_TEST && ! CONFIG_RASPBERRYPI_FIRMWARE ))
defined in drivers/staging/vc04_services/Kconfig
found in Linux kernels: 4.10–4.11
modules built: vchiq

Help text

Kernel to VideoCore communication interface for the BCM2835 family of products. Defaults to Y when the Broadcom Videocore services are included in the build, N otherwise.