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Opened 3 years ago

#19679 new defect

Camera support on Raspberry Pi model B+

Reported by: lesavonfou@… Owned by: developers
Priority: normal Milestone:
Component: kernel Version: Barrier Breaker 14.07
Keywords: Cc:

Description

Hello,

I would like to use a the official raspberry camera for a personal project.
This camera is using the CSI port of the Raspberry Pi (between the HDMI and the Ethernet port).

I naturally looked at the openWRT Wiki to know how to enable a camera:
http://wiki.openwrt.org/doc/howto/usb.video

I selected the required packages in the kernel menu and also the module "Broadcom BM2835 MMAL camera interface driver".

From my understanding, the GPU being closed sourced, a kind of api is necessary for the kernel to access to the camera sensor. This API seems called MMAL (Multi-Media Abstract Layer).

When the kernel tries to load this module, the module returns the error "bcm2835-v4l2: error -1 while loading driver".

After some dig in the code, it seems that the function "vchiq_mmal_component_init()" of the file bcm2835-camera.c is returning a wrong answer.

With Chaos Calmer, this module is loaded smoothly.

Have you any ideas or suggestions about this issue?

Thank you in advance !

Le Savon Fou.

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