Re: [PATCH 2/2] staging: vchiq: Add details to $CONFIG_VCHIQ_CDEV help text
From: Greg KH <gregkh@linuxfoundation.org>
Date: 2021-07-28 18:46:55
Also in:
linux-staging, lkml
On Thu, Jul 29, 2021 at 12:07:17AM +0530, Ojaswin Mujoo wrote:
quoted hunk ↗ jump to hunk
Add some details to the Kconfig definition of $CONFIG_VCHIQ_CDEV to help make the motive behind it a bit more clear. Signed-off-by: Ojaswin Mujoo <redacted> --- drivers/staging/vc04_services/Kconfig | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)diff --git a/drivers/staging/vc04_services/Kconfig b/drivers/staging/vc04_services/Kconfig index 2b70c37cdd09..cb02d8a4cb74 100644 --- a/drivers/staging/vc04_services/Kconfig +++ b/drivers/staging/vc04_services/Kconfig@@ -25,8 +25,12 @@ config VCHIQ_CDEV bool "VCHIQ Character Driver" default y help - Enable the creation of VCHIQ character driver to help - communicate with the Videocore platform. + Enable the creation of VCHIQ character driver to help communicate + with the VideoCore platform. The cdev exposes ioctls used by + userspace libraries and testing tools to interact with VideoCore. + This can be set to 'N' if the VideoCore communication is not needed + by userspace but only by other kernel modules (like bcm2835-audio). + If not sure, set this to 'Y'.
I still do not understand if I need this driver or not, and I have this hardware! What functionality does this driver accomplish? What is VideoCore? thanks, greg k-h _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel