From: Norbert Rooss <zaeld@gmx.de>
To: linux-kernel@vger.kernel.org
Subject: tty drivers: Is put_char mandatory?
Date: Mon, 28 Oct 2002 12:38:05 +0100 (MET) [thread overview]
Message-ID: <11192.1035805085@www42.gmx.net> (raw)
Hello!
Simple question: Is the implementation of the function put_char() for tty
drivers mandatory? (Defined in include/linux/tty_driver.h, struct tty_driver)
Because if it is not, then there is a bug in drivers/char/n_tty.c, where the
driver specific put_char gets called without a check for availability (in
function opost())
On the other hand, if it is mandatory, then there is a bug in the USB serial
part, as usbserial.c does not implement put_char()...
(drivers/usb/serial/usbserial.c)
bye
Norbert
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next reply other threads:[~2002-10-28 11:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-28 11:38 Norbert Rooss [this message]
2002-10-28 14:57 ` Norbert Rooss
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