Date: Mon, 14 Oct 2024 15:51:25 +0200
From: Ramiro Aceves <ea1...@gmail.com>
Message-ID:
<canfmp74ohoueriupr9u8g0pknwrry+d+mkc4f_hdvec60lx...@mail.gmail.com>
| netbsd-raspa4$ { sleep 1; stty -f /dev/ttyU0 ... ; } & cat /dev/ttyU0
| stty: /dev/ttyU0: Resource temporarily unavailable
stty opens its -f arg file in O_NONBLOCK mode - that error (EAGAIN or
EWOULDBLOCK, they're the same thing) indicates that the open would
hang (the open in cat is probably hanging too).
This might be a case where dedicated C code is needed, or it may be that
the device isn't connected to anything in a way that the driver
considers as acceptable.
kre
