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Alessandro Rubini authored
Every function that is sable to wait for a timeout now may return -1 with FMCADC_EDISABLED. The new zio commits support that by returning POLLERR when using poll(2) over a control file descriptor and the trigger is disabled. A non-zio driver may support something similar. Thus, an application may disable the trigger to unlock with error any thread waiting for an input block. Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
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