Re: Linux tty driver question
From: Jiri Slaby
Date: Sat Feb 17 2007 - 06:01:51 EST
I'm working on Linux tty driver (based on tiny_tty).
How can I provide in my driver Linux cat operation (e.g.cat < ttyS3)?
call tty_insert_flip_*() from somewhere to put some data into tty recieve
buffer, which is pushed into ldisc by tty_flip_buffer_push() and then sent by
tty_read function (where ldisc read is called) to userspace for reading process.
What should I implement exactly?
open, settermios, write_room (note that this is minimal and will probably oops
when poll or write is invoked) + some isr or timer to fill the buffer mentioned
http://www.fi.muni.cz/~xslaby/ Jiri Slaby
faculty of informatics, masaryk university, brno, cz
e-mail: jirislaby gmail com, gpg pubkey fingerprint:
B674 9967 0407 CE62 ACC8 22A0 32CC 55C3 39D4 7A7E
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