Dmitry -
In serio_raw.c function serio_raw_write() there's a check:
if (count > 32)
count = 32;
which coerces any call to write a maximum of 32 bytes. Do you know why
this limitation is in the code? Characters get written one-by-one to the
tty layer so I don't understand why it's there.
I'm not sure which section of the manpage defines write for a serial
port. In the ordinary case I expected this function to keep transmitting
until complete or an error occurs. If O_NONBLOCK was specified then I
might expect EAGAIN. Right now my calling code doesn't expect a
successful partial write. Do you think this module is doing the right
thing? Can you comment on what the caller must expect?
-joey
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