Xenomai real time driver and normal linux driver mutual exclusion
From: melinda develey <hidden>
Date: 2007-03-11 21:57:06
I have an I2C bus, some devices should be controlled by a normal linux driver but an ADC and a DAC on this bus should be controlled by a real time xenomai driver because, after a READ from the DAC I have to write to the ADC every 500 usec. I tried to use the normal linux driver from a xenomai real time user mode task but reading DAC, doing some computations, and writing to the ADC takes more than 500 usec. I thought to write both a RTDM driver for my 8xx I2C controller and a normal linux driver, but, how may I serialize access to the 8xx I2C controller from these drivers? Bye, Antonio. --------------------------------- Bored stiff? Loosen up... Download and play hundreds of games for free on Yahoo! Games.