linux-kernel - Re: [PATCH] ldisc: new dcd_change() method for line disciplines.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 28 Nov 2008 12:39:16 +0100
From:	Tilman Schmidt <tilman@...p.cc>
To:	Rodolfo Giometti <giometti@...ux.it>
CC:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Dave Jones <davej@...hat.com>, Sam Ravnborg <sam@...nborg.org>,
	Greg KH <greg@...ah.com>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	Kay Sievers <kay.sievers@...y.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...e.hu>,
	Michael Kerrisk <mtk.manpages@...il.com>
Subject: Re: [PATCH] ldisc: new dcd_change() method for line disciplines.

Rodolfo Giometti schrieb:
> --- a/include/linux/tty_ldisc.h
> +++ b/include/linux/tty_ldisc.h
> @@ -99,11 +99,19 @@
>   *	cease I/O to the tty driver. Can sleep. The driver should
>   *	seek to perform this action quickly but should wait until
>   *	any pending driver I/O is completed.
> + *
> + * void (*dcd_change)(struct uart_port *port, unsigned int status,
> + * 			struct timespec *ts)
> + *
> + *	Tells the discipline that the DCD pin has changed its status and
> + *	the relative timestamp. Pointer ts can be NULL.
>   */

I don't see an actual call to that new method getting added anywhere.
Is that planned for a later patch? Which serial drivers will support
that mechanism? Should the documentation perhaps mention that not
all drivers support this?

Thanks,
Tilman

-- 
Tilman Schmidt                    E-Mail: tilman@...p.cc
Bonn, Germany
Diese Nachricht besteht zu 100% aus wiederverwerteten Bits.
Ungeöffnet mindestens haltbar bis: (siehe Rückseite)


Download attachment "signature.asc" of type "application/pgp-signature" (251 bytes)