Re: Question about framebuffer and kernel module

["Carl Shaw" <shaw.carl@gmail.com>]

Hi Tiago,

This should be redirected to the ST support Bugzilla at
https://bugzilla.stlinux.com/

It is not a generic SH kernel problem.

Regards,
Carl


On Thu, Sep 11, 2008 at 3:13 PM, Tiago Maluta <tiago.maluta@gmail.com> wrote:
> Hi,
>
> I'm work with frame buffer devices on ST reference boards using
> stmfb-3.0_stm23_0009 with kernel linux-2.6.17.14_stm22_0038.
>
> After system boot I try to load stmcore-display-stx7100.ko
>
> #modprobe stmcore-display-stx7100
> stmcore_display_stx7100: Unknown symbol request_firmware
>
> Looking at /devkit/sources/stmfb/stmfb/Linux/stm/coredisplay/devfbOS.c
> I've commented the following lines and works.
>
> --- a/devfbOS.c 2008-09-11 10:14:09.000000000 -0300
> +++ b/devfbOS.c 2008-09-11 10:15:05.000000000 -0300
> @@ -722,7 +722,8 @@
>     /* get linux firmware */
>     printk ("requesting frm: '%s', %p/%p\n",
>             name, &firmware_device, &lnx_firmware);
> -    error = request_firmware ((const struct firmware **)
> (&lnx_firmware), name, &firmware_device);
> +    //error = request_firmware ((const struct firmware **)
> (&lnx_firmware), name, &firmware_device);
> +    error=1;
>     if (unlikely (error))
>     {
>       kfree (fw);
> @@ -748,7 +749,7 @@
>     list_add_tail (&fw->fw_list, &fwd->fw_cache);
>
>     /* release linux firmware */
> -    release_firmware (lnx_firmware);
> +    /* release_firmware (lnx_firmware); */
>   }
>
> I know this fix work   because they didn't try to release firmware on module...
> But I didn't know why it really works and the implications doing what I do?
>
>
> Best regards,
> Tiago Maluta
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