On 29/01/20 18:20, Stefan Hajnoczi wrote: > + /* Semaphore semantics don't make sense when autoreset is enabled */ > + if ((flags & EFD_SEMAPHORE) && (flags & EFD_AUTORESET)) > + return -EINVAL; > + I think they do, you just want to subtract 1 instead of setting the count to 0. This way, writing 1 would be the post operation on the semaphore, while poll() would be the wait operation. Paolo
