Abeni Paolo wrote:
Yes, they can be used. The USB capture use a character device which implement the poll interface.
My main concern is with mmapped access. Presumably, with mmapped access, there are still system calls that move a "these packets have been read" pointer and that block until the "these packets have arrived" pointer to move ahead of the "these packets have been read" pointer; if that's the case, and if a select() or poll() will also check for the "these packets have arrived" pointer being ahead of the "these packets have been read" pointer, that will work.
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