Re: [Gumstix-users] LCD 2x16 characters on a breakout-gs

[yipiha <yip...@gm...>]

Sorry the function C "system" not exec 



yipiha wrote:
> 
> 
> Ok usleep-drv and usleep-test works in the gumstix
> 
> How do you implement the usleep in the lcd-hal-avr.c ? shall i use the
> function C "exec" ?
> 
> and i have one more question, in the function LCD_HAL_E_Pulse.
> 
> the E need to be High for 230 milli second, not nano second ?
> 
> thanks
> 
> 
> yipiha wrote:
>> 
>> Hi dave and thank
>> 
>> 	
>> If I understood I must as a first step:
>> 
>> usleep compile copy the result in 2.6.21gum / ...
>> make a modprobe module compiled and depmod
>> 
>> and functions of usleep are available?
>> 
>> then call "exec" function usleep in lcd-hal-avr.c, and it's all ?
>> 
>> 
>> Dave Hylands wrote:
>>> 
>>> 
>>> No - the -drv.c files are the kernel module files. You'll need to
>>> compile and build the kernel module. You would use a few lines from
>>> the usleep-test.c file (which is the user-mode file). You need to open
>>> /dev/usleep and do the ioctl in place of the delays.
>>> 
>>> 
>> 
>> 
> 
> 

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