ML300-gpio

2 messages, 2 authors, 2005-06-01 · open the first message on its own page

ML300-gpio

From: <hidden>
Date: 2005-06-01 10:21:18

hi all,
I'm working with the ML300 platform running the shipped Montavista Linux
(and hw configuration). I need to use the onboard gpio and I found a driv=
er,
the xilinx_gpio, that I have loaded (insmod xilinx_gpio). After insmoding=

the driver it is registered in /dev/xgpio (why is not it loaded in /proc/=

before?) I have tried to use the GPIOs...

cat "111111000000" > /dev/xgpio

I was expecting some leds lighting but nothing at all...
Is there someone experienced with the ml300 gpios? 
Please I need help
Luigi

Re: ML300-gpio

From: Andrei Konovalov <hidden>
Date: 2005-06-01 10:34:24

colui77@virgilio.it wrote:
hi all,
I'm working with the ML300 platform running the shipped Montavista Linux
(and hw configuration). I need to use the onboard gpio and I found a driver,
the xilinx_gpio, that I have loaded (insmod xilinx_gpio). After insmoding
the driver it is registered in /dev/xgpio (why is not it loaded in /proc/
before?) I have tried to use the GPIOs...

cat "111111000000" > /dev/xgpio
You must use ioctl's.
This driver has the same API as IBM OCP GPIO driver.
Please check include/linux/ibm_ocp_gpio.h.

Thanks,
Andrei
I was expecting some leds lighting but nothing at all...
Is there someone experienced with the ml300 gpios? 
Please I need help
Luigi



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