tty drivers: Is put_char mandatory?
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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Quoted 2 lines
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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