2008-07-10 03:10:09 problem happened when i insmod my ppi drivers
edward jiang (CHINA)
Message: 58592
hello all:
when i compile the ppi driver(attached to uclinux kernel:\linuux-2.6.x\drivers\char) of uclinux(kernel version: 2008R1-RC8,makefile compiler：bfin-uclinux-gcc 4.1.2).several warnings is posted as follows,
make: Entering directory `/home/uClinux-dist-2008R1-RC8/linux-2.6.x'
CC [M] /home/driver/ppi_driver/bfin_ppi.o
Building modules, stage 2.
MODPOST 1 modules
WARNING: "get_gptimer_config" [/home/driver/ppi_driver/bfin_ppi.ko] undefined!
WARNING: "enable_gptimers" [/home/driver/ppi_driver/bfin_ppi.ko] undefined!
WARNING: "get_gptimer_pwidth" [/home/driver/ppi_driver/bfin_ppi.ko] undefined!
WARNING: "get_gptimer_period" [/home/driver/ppi_driver/bfin_ppi.ko] undefined!
WARNING: "set_gptimer_pwidth" [/home/driver/ppi_driver/bfin_ppi.ko] undefined!
WARNING: "set_gptimer_period" [/home/driver/ppi_driver/bfin_ppi.ko] undefined!
WARNING: "set_gptimer_config" [/home/driver/ppi_driver/bfin_ppi.ko] undefined!
WARNING: "disable_gptimers" [/home/driver/ppi_driver/bfin_ppi.ko] undefined!
CC /home/driver/ppi_driver/bfin_ppi.mod.o
LD [M] /home/driver/ppi_driver/bfin_ppi.ko
make: Leaving directory `/home/uClinux-dist-2008R1-RC8/linux-2.6.x'
but the bfin_ppi.ko was still created. when i download this .ko file into bf537 and type "insmod bfin_ppi.ko",system told me messages below:
root:/home> insmod bfin_ppi.ko
bfin_ppi: Unknown symbol _get_gptimer_pwidth
bfin_ppi: Unknown symbol _enable_gptimers
bfin_ppi: Unknown symbol _disable_gptimers
bfin_ppi: Unknown symbol _disable_gptimers
bfin_ppi: Unknown symbol _set_gptimer_pwidth
bfin_ppi: Unknown symbol _get_gptimer_config
bfin_ppi: Unknown symbol _set_gptimer_config
bfin_ppi: Unknown symbol _set_gptimer_period
bfin_ppi: Unknown symbol _get_gptimer_period
insmod: cannot insert 'bfin_ppi.ko': Unknown symbol in module (-1): No such file
or directory
i checked the bfin_ppi.c,i found i have #include<asm/gptimer.h>, but why this still happened? can
anybody tell me the reason?
thanks a lot.
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2008-07-10 03:31:25 Re: problem happened when i insmod my ppi drivers
Yi Li (CHINA)
Message: 58593
please enable : CONFIG_BFIN_GPTIMERS.
This is a link/load time error, and cannot be solved by including headers.