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.
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