[RPI BSP] Framebuffer interface. "No such device"

[Joel Sherrill]

On April 12, 2015 3:45:33 PM CDT, QIAO YANG <yangqiao0505 at me.com> wrote:
>Hello everyone,
>
>
>I've implemented a simple framebuffer driver. It can be loaded
>correctly and it can draw images . But when I try to open the
>framebuffer interface '/dev/fb0', I've always got "No such device". I
>thought I've missed something. Anyone has an idea?
>
>
>I've already registered the device name by:
>
> status = rtems_io_register_name (FRAMEBUFFER_DEVICE_0_NAME, major, 0);
>
>
>And the interface /dev/fb0 exists.

Are you seeing you this from an L's?

>I'm using Alan's rki to build the kernel image and test apps.

What error conditions cause that error code? Look in open.c and see what can go wrong.

I assume there are enough file descriptors configured.

>
>Thanks in advance

--joel