Fwd: Error opening framebuffer device

Fwd: Error opening framebuffer device

[kaka]

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*Hi All,*

*While running  the cross compiled directFB example on MIPS chip,*

*
We tried to install the framebuffer driver(command given below) and we
have already created the node fb0.*

*We are getting the following error, *

*Can anybody throw some light on it?*

*Thanks in Advance.*

*While running the following command in MIPS chip, we are getting the
following error.*

# insmod brcmstfb.ko
brcmstfb: Unknown symbol unregister_framebuffer
brcmstfb: Unknown symbol BKNI_EnterCriticalSection_tagged
brcmstfb: Unknown symbol printf
brcmstfb: Unknown symbol BKNI_DestroyEventGroup
brcmstfb: Unknown symbol BKNI_WaitForEvent_tagged
brcmstfb: Unknown symbol BKNI_Printf
brcmstfb: Unknown symbol __divsf3
brcmstfb: Unknown symbol BKNI_Vprintf
brcmstfb: Unknown symbol BKNI_Memset
brcmstfb: Unknown symbol bnetif_dma_data
brcmstfb: Unknown symbol bnetif_dma_delete_filter
brcmstfb: Unknown symbol cleanup_bnetif_dma
brcmstfb: Unknown symbol BKNI_AcquireMutex_tagged
brcmstfb: Unknown symbol malloc
brcmstfb: Unknown symbol BKNI_DestroyMutex
brcmstfb: Unknown symbol framebuffer_alloc
brcmstfb: Unknown symbol BKNI_RemoveEventGroup
brcmstfb: Unknown symbol BKNI_Malloc_tagged
brcmstfb: Unknown symbol BKNI_CreateEventGroup
brcmstfb: Unknown symbol BKNI_WaitForGroup
brcmstfb: Unknown symbol __extendsfdf2
brcmstfb: Unknown symbol BKNI_SetEvent_tagged
brcmstfb: Unknown symbol BKNI_Memcpy
brcmstfb: Unknown symbol BKNI_LinuxKernel_SetIsrTasklet
brcmstfb: Unknown symbol BKNI_Memcmp
brcmstfb: Unknown symbol fb_find_mode
brcmstfb: Unknown symbol fb_dealloc_cmap
brcmstfb: Unknown symbol bnetif_dma_stop
brcmstfb: Unknown symbol BKNI_ResetEvent_tagged
brcmstfb: Unknown symbol BKNI_CreateMutex
brcmstfb: Unknown symbol BKNI_CreateEvent_tagged
brcmstfb: Unknown symbol __floatsisf
brcmstfb: Unknown symbol brcm_dir_entry
brcmstfb: Unknown symbol register_framebuffer
brcmstfb: Unknown symbol BKNI_Fail
brcmstfb: Unknown symbol fb_alloc_cmap
brcmstfb: Unknown symbol BKNI_Snprintf
brcmstfb: Unknown symbol BKNI_Delay_tagged
brcmstfb: Unknown symbol BKNI_LeaveCriticalSection_tagged
brcmstfb: Unknown symbol BKNI_Sleep_tagged
brcmstfb: Unknown symbol bnetif_dma_add_filter
brcmstfb: Unknown symbol BKNI_Free_tagged
brcmstfb: Unknown symbol BKNI_DestroyEvent_tagged
brcmstfb: Unknown symbol init_bnetif_dma
brcmstfb: Unknown symbol framebuffer_release
brcmstfb: Unknown symbol BKNI_AddEventGroup
brcmstfb: Unknown symbol BKNI_ReleaseMutex_tagged
brcmstfb: Unknown symbol __addsf3
brcmstfb: Unknown symbol free
insmod: cannot insert `brcmstfb.ko': Unknown symbol in module (2): No
such file or directory
#

# ../../cross_directfb/simple_mips

     =======================|  DirectFB 1.0.0  |=======================
          (c) 2001-2007  The DirectFB Organization (directfb.org)
          (c) 2000-2004  Convergence (integrated media) GmbH
        ------------------------------------------------------------

(*) DirectFB/Core: Single Application Core. (2007-10-05 14:17)
(!) Direct/Util: opening '/dev/fb0' failed
    --> No such device or address
(!) DirectFB/FBDev: Error opening framebuffer device!
(!) DirectFB/FBDev: Use 'fbdev' option or set FRAMEBUFFER environment variable.
(!) DirectFB/Core: Could not initialize 'system' core!
    --> Initialization error!simple.c <96>:
        (#) DirectFBError [DirectFBCreate (&dfb)]: Initialization error!
#

#

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Error opening framebuffer device

[kaka]

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*Hi All,*

*While running  the cross compiled directFB example on MIPS chip,*

*
We tried to install the framebuffer driver(command given at the
bottom) and we have already created the node fb0.*

*We are getting the following error, *

*Can anybody throw some light on it?*

*Thanks in Advance.*

# ../../cross_directfb/simple_mips

     =======================|  DirectFB 1.0.0  |=======================
          (c) 2001-2007  The DirectFB Organization (directfb.org)
          (c) 2000-2004  Convergence (integrated media) GmbH
        ------------------------------------------------------------

(*) DirectFB/Core: Single Application Core. (2007-10-05 14:17)
(!) Direct/Util: opening '/dev/fb0' failed
    --> No such device or address
(!) DirectFB/FBDev: Error opening framebuffer device!
(!) DirectFB/FBDev: Use 'fbdev' option or set FRAMEBUFFER environment variable.
(!) DirectFB/Core: Could not initialize 'system' core!
    --> Initialization error!simple.c <96>:
        (#) DirectFBError [DirectFBCreate (&dfb)]: Initialization error!
#

*While running the following command in MIPS chip, we are getting the
following error.*

# insmod brcmstfb.ko
brcmstfb: Unknown symbol unregister_framebuffer
brcmstfb: Unknown symbol BKNI_EnterCriticalSection_tagged
brcmstfb: Unknown symbol printf
brcmstfb: Unknown symbol BKNI_DestroyEventGroup
brcmstfb: Unknown symbol BKNI_WaitForEvent_tagged
brcmstfb: Unknown symbol BKNI_Printf
brcmstfb: Unknown symbol __divsf3
brcmstfb: Unknown symbol BKNI_Vprintf
brcmstfb: Unknown symbol BKNI_Memset
brcmstfb: Unknown symbol bnetif_dma_data
brcmstfb: Unknown symbol bnetif_dma_delete_filter
brcmstfb: Unknown symbol cleanup_bnetif_dma
brcmstfb: Unknown symbol BKNI_AcquireMutex_tagged
brcmstfb: Unknown symbol malloc
brcmstfb: Unknown symbol BKNI_DestroyMutex
brcmstfb: Unknown symbol framebuffer_alloc
brcmstfb: Unknown symbol BKNI_RemoveEventGroup
brcmstfb: Unknown symbol BKNI_Malloc_tagged
brcmstfb: Unknown symbol BKNI_CreateEventGroup
brcmstfb: Unknown symbol BKNI_WaitForGroup
brcmstfb: Unknown symbol __extendsfdf2
brcmstfb: Unknown symbol BKNI_SetEvent_tagged
brcmstfb: Unknown symbol BKNI_Memcpy
brcmstfb: Unknown symbol BKNI_LinuxKernel_SetIsrTasklet
brcmstfb: Unknown symbol BKNI_Memcmp
brcmstfb: Unknown symbol fb_find_mode
brcmstfb: Unknown symbol fb_dealloc_cmap
brcmstfb: Unknown symbol bnetif_dma_stop
brcmstfb: Unknown symbol BKNI_ResetEvent_tagged
brcmstfb: Unknown symbol BKNI_CreateMutex
brcmstfb: Unknown symbol BKNI_CreateEvent_tagged
brcmstfb: Unknown symbol __floatsisf
brcmstfb: Unknown symbol brcm_dir_entry
brcmstfb: Unknown symbol register_framebuffer
brcmstfb: Unknown symbol BKNI_Fail
brcmstfb: Unknown symbol fb_alloc_cmap
brcmstfb: Unknown symbol BKNI_Snprintf
brcmstfb: Unknown symbol BKNI_Delay_tagged
brcmstfb: Unknown symbol BKNI_LeaveCriticalSection_tagged
brcmstfb: Unknown symbol BKNI_Sleep_tagged
brcmstfb: Unknown symbol bnetif_dma_add_filter
brcmstfb: Unknown symbol BKNI_Free_tagged
brcmstfb: Unknown symbol BKNI_DestroyEvent_tagged
brcmstfb: Unknown symbol init_bnetif_dma
brcmstfb: Unknown symbol framebuffer_release
brcmstfb: Unknown symbol BKNI_AddEventGroup
brcmstfb: Unknown symbol BKNI_ReleaseMutex_tagged
brcmstfb: Unknown symbol __addsf3
brcmstfb: Unknown symbol free
insmod: cannot insert `brcmstfb.ko': Unknown symbol in module (2): No
such file or directory
#
#

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Re: Error opening framebuffer device

[Florian Fainelli]

Hi,

On Tuesday 09 October 2007 10:45:43 kaka wrote:
> *Hi All,*
>
> *While running  the cross compiled directFB example on MIPS chip,*
>
> *
> We tried to install the framebuffer driver(command given at the
> bottom) and we have already created the node fb0.*

Looking at the insmod below, I think the framebuffer did not register 
correctly, so creating the device will not help if the driver is not 
registered.

> # insmod brcmstfb.ko
> brcmstfb: Unknown symbol unregister_framebuffer
> brcmstfb: Unknown symbol BKNI_EnterCriticalSection_tagged
> brcmstfb: Unknown symbol printf
> brcmstfb: Unknown symbol BKNI_DestroyEventGroup
> brcmstfb: Unknown symbol BKNI_WaitForEvent_tagged
> brcmstfb: Unknown symbol BKNI_Printf
> brcmstfb: Unknown symbol __divsf3
> brcmstfb: Unknown symbol BKNI_Vprintf
> brcmstfb: Unknown symbol BKNI_Memset
> brcmstfb: Unknown symbol bnetif_dma_data
> brcmstfb: Unknown symbol bnetif_dma_delete_filter
> brcmstfb: Unknown symbol cleanup_bnetif_dma
> brcmstfb: Unknown symbol BKNI_AcquireMutex_tagged
> brcmstfb: Unknown symbol malloc
> brcmstfb: Unknown symbol BKNI_DestroyMutex
> brcmstfb: Unknown symbol framebuffer_alloc
> brcmstfb: Unknown symbol BKNI_RemoveEventGroup
> brcmstfb: Unknown symbol BKNI_Malloc_tagged
> brcmstfb: Unknown symbol BKNI_CreateEventGroup
> brcmstfb: Unknown symbol BKNI_WaitForGroup
> brcmstfb: Unknown symbol __extendsfdf2
> brcmstfb: Unknown symbol BKNI_SetEvent_tagged
> brcmstfb: Unknown symbol BKNI_Memcpy
> brcmstfb: Unknown symbol BKNI_LinuxKernel_SetIsrTasklet
> brcmstfb: Unknown symbol BKNI_Memcmp
> brcmstfb: Unknown symbol fb_find_mode
> brcmstfb: Unknown symbol fb_dealloc_cmap
> brcmstfb: Unknown symbol bnetif_dma_stop
> brcmstfb: Unknown symbol BKNI_ResetEvent_tagged
> brcmstfb: Unknown symbol BKNI_CreateMutex
> brcmstfb: Unknown symbol BKNI_CreateEvent_tagged
> brcmstfb: Unknown symbol __floatsisf
> brcmstfb: Unknown symbol brcm_dir_entry
> brcmstfb: Unknown symbol register_framebuffer
> brcmstfb: Unknown symbol BKNI_Fail
> brcmstfb: Unknown symbol fb_alloc_cmap
> brcmstfb: Unknown symbol BKNI_Snprintf
> brcmstfb: Unknown symbol BKNI_Delay_tagged
> brcmstfb: Unknown symbol BKNI_LeaveCriticalSection_tagged
> brcmstfb: Unknown symbol BKNI_Sleep_tagged
> brcmstfb: Unknown symbol bnetif_dma_add_filter
> brcmstfb: Unknown symbol BKNI_Free_tagged
> brcmstfb: Unknown symbol BKNI_DestroyEvent_tagged
> brcmstfb: Unknown symbol init_bnetif_dma
> brcmstfb: Unknown symbol framebuffer_release
> brcmstfb: Unknown symbol BKNI_AddEventGroup
> brcmstfb: Unknown symbol BKNI_ReleaseMutex_tagged
> brcmstfb: Unknown symbol __addsf3
> brcmstfb: Unknown symbol free
> insmod: cannot insert `brcmstfb.ko': Unknown symbol in module (2): No
> such file or directory
> #

Did you compile framebuffer support for your kernel ? Because if yes, most 
symbols (I did not check all) used by your drivers seems to be exported with 
EXPORT_SYMBOL, and not EXPORT_SYMBOL_GPL, so your driver, even with a 
proprietary license should be able to access them.

I would recommend you mention your linux version, and the relevant kernel 
configuration parts.

Re: Fwd: Error opening framebuffer device

[Geert Uytterhoeven]

On Tue, 9 Oct 2007, kaka wrote:
> # insmod brcmstfb.ko
> brcmstfb: Unknown symbol unregister_framebuffer

Try `modprobe brcmstfb', which will also load the modules it depends on.

> brcmstfb: Unknown symbol printf

Ugh, printf()? There's no printf() in our kernel.

> brcmstfb: Unknown symbol malloc

There's no malloc() in our kernel.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

Re: Fwd: Error opening framebuffer device

[Ralf Baechle]

On Tue, Oct 09, 2007 at 12:14:46PM +0530, kaka wrote:

> # insmod brcmstfb.ko
> brcmstfb: Unknown symbol unregister_framebuffer

It would help tremendously to enable framebuffer support.

> brcmstfb: Unknown symbol BKNI_EnterCriticalSection_tagged
> brcmstfb: Unknown symbol printf
> brcmstfb: Unknown symbol BKNI_DestroyEventGroup
> brcmstfb: Unknown symbol BKNI_WaitForEvent_tagged
> brcmstfb: Unknown symbol BKNI_Printf
> brcmstfb: Unknown symbol __divsf3

Floating point in the kernel that doesn't quite fly - unless you do
softfloat.

  Ralf