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.
