[microblaze-uclinux] GPIO in /dev/gpio

[Arnaud Lagger <arnaud.lagger@xxxxxxx>]

Dear all,

I'm trying to use the GPIO, as in gpio_test but /dev/gpio doesn't appear 
in uClinux.

So I added:

----

ifdef CONFIG_XILINX_GPIO
DEVICES +=   \
	gpio,c,185,0	gpio1,c,185,1	gpio2,c,185,2	\
	gpio3,c,185,3	gpio4,c,185,4	gpio5,c,185,5	\
	gpio6,c,185,6	gpio7,c,185,7	gpio8,c,185,8	\
	gpio9,c,185,9	gpio10,c,185,10	gpio11,c,185,11	\
	gpio12,c,185,12	gpio13,c,185,13	gpio14,c,185,14	\
	gpio15,c,185,15	gpio16,c,185,16	gpio17,c,185,17	\
	gpio18,c,185,18	gpio19,c,185,19	gpio20,c,185,20	\
	gpio21,c,185,21	gpio22,c,185,22	gpio23,c,185,23
endif

----

in vendors/Xilinx/uclinux-auto/Makefile

and /dev/gpio appears but it cannot be opened (with for instance 
open("/dev/gpio", O_RDWR))!

Any idea?

Thanks,

Arnaud Lagger
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