* tty drivers: Is put_char mandatory?
@ 2002-10-28 11:38 Norbert Rooss
2002-10-28 14:57 ` Norbert Rooss
0 siblings, 1 reply; 2+ messages in thread
From: Norbert Rooss @ 2002-10-28 11:38 UTC (permalink / raw)
To: linux-kernel
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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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: tty drivers: Is put_char mandatory?
2002-10-28 11:38 tty drivers: Is put_char mandatory? Norbert Rooss
@ 2002-10-28 14:57 ` Norbert Rooss
0 siblings, 0 replies; 2+ messages in thread
From: Norbert Rooss @ 2002-10-28 14:57 UTC (permalink / raw)
To: linux-kernel
> Simple question: Is the implementation of the function put_char() for tty
> drivers mandatory?
Oh sorry, I didn't see that a default put_char() is used in this case..
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