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tty_driver: Update required method documentation 

Some of the requirement rules are now more relaxed. Also correct a
contradiction in the previous update

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox 2008-06-23 12:06:52 +01:00 committed by Linus Torvalds
parent 55d8538498
commit 36c7343b4e
1 changed files with 2 additions and 3 deletions
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5
include/linux/tty_driver.h
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@ -27,8 +27,7 @@
* This routine is called by the kernel to write a series of
* characters to the tty device. The characters may come from
* user space or kernel space. This routine will return the
* number of characters actually accepted for writing. This
* routine is mandatory.
* number of characters actually accepted for writing.
*
* Optional: Required for writable devices.
*
@ -134,7 +133,7 @@
* This routine notifies the tty driver that it should hangup the
* tty device.
*
* Required:
* Optional:
*
* void (*break_ctl)(struct tty_stuct *tty, int state);
*