I tried the new cmd_bits function today to use commands to write to a DIO
device on my NI6259 board (thanks a lot, Alexis, for starting this!).
Unfortunately, cmd_bits terminates with an error:
r...@unix> ./cmd_bits -v -s 2 0xffffffff 0xffffffff
cmd_bits: device analogy0 opened (fd=0)
cmd_bits: basic descriptor retrieved
subdevices count = 14
read subdevice index = 0
write subdevice index = 1
cmd_bits: complex descriptor retrieved
cmd_bits: selected subdevice index = 2
cmd_bits: command successfully sent
cmd_bits: a4l_write failed (err=-2) (count=0)
(I added a counter in the while loop in cmd_bits.c, and the error occurs
immediately after the while loop is entered, i.e., count=0)
r...@unix> dmesg
[63462.716029] Analogy: a4l_write: idle subdevice
Any thoughts what may cause this error?
Best wishes,
-Stefan
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