tree 88de4fce80e1529c7d34a59601752808351eb0ea
parent 6f967f7891076abc09e12ce952f85825e7ee8caf
author Alan Cox <alan@redhat.com> 1223890668 +0100
committer Linus Torvalds <torvalds@linux-foundation.org> 1223916700 -0700

tty: Cris has a nice RS485 ioctl so we should steal it

JP Tosoni observed:

"About a RS485 ioctl: could you consider the attached files which are
 already in the Linux kernel (in include/asm-cris).  They define a
 TIOCSERSETRS485 (ioctl.h), and the data structure (rs485.h)
 with allows to specify timings. Sounds just like what we want ?"

and he's right: sort of. Rework the structure to use flag bits and make the
time delay a fixed sized field so we don't get 32/64bit problems. Add the ioctls
to x86 so that people know what to add to their platform of choice.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>