From: Russell King <rmk@arm.linux.org.uk>
To: Remco Treffkorn <remco@rvt.com>
Cc: Dan Malek <dan@embeddededge.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Tom Rini <trini@kernel.crashing.org>,
linux-kernel@vger.kernel.org, linuxppc-dev@lists.linuxppc.org
Subject: Re: 3 Serial issues up for discussion (was: Re: Serial core problems on embedded PPC)
Date: Mon, 29 Jul 2002 21:18:29 +0100 [thread overview]
Message-ID: <20020729211829.F25451@flint.arm.linux.org.uk> (raw)
In-Reply-To: <200207291246.43134.remco@rvt.com>; from remco@rvt.com on Mon, Jul 29, 2002 at 12:46:42PM -0700
On Mon, Jul 29, 2002 at 12:46:42PM -0700, Remco Treffkorn wrote:
> On Monday 29 July 2002 12:09, Dan Malek wrote:
> > or a mix of both. The problems to solve are drivers fighting over minor
> > device numbers and assumptions about the system console.
> >
>
> Drivers need not fight about minor numbers. That can be simply handled:
>
> int get_new_serial_minor()
> {
> static int minor;
>
> return minor++;
> }
>
> Any serial driver can call this when it initializes a new uart.
> Hot pluggable drivers have to hang on to their minors, and
> re-use.
It's a possible solution, if we get the ability for drivers to hang
on to their minors. However, I get the feeling that this isn't going
to happen before 2.6.
--
Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
http://www.arm.linux.org.uk/personal/aboutme.html
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
WARNING: multiple messages have this Message-ID (diff)
From: Russell King <rmk@arm.linux.org.uk>
To: Remco Treffkorn <remco@rvt.com>
Cc: Dan Malek <dan@embeddededge.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Tom Rini <trini@kernel.crashing.org>,
linux-kernel@vger.kernel.org, linuxppc-dev@lists.linuxppc.org
Subject: Re: 3 Serial issues up for discussion (was: Re: Serial core problems on embedded PPC)
Date: Mon, 29 Jul 2002 21:18:29 +0100 [thread overview]
Message-ID: <20020729211829.F25451@flint.arm.linux.org.uk> (raw)
In-Reply-To: <200207291246.43134.remco@rvt.com>; from remco@rvt.com on Mon, Jul 29, 2002 at 12:46:42PM -0700
On Mon, Jul 29, 2002 at 12:46:42PM -0700, Remco Treffkorn wrote:
> On Monday 29 July 2002 12:09, Dan Malek wrote:
> > or a mix of both. The problems to solve are drivers fighting over minor
> > device numbers and assumptions about the system console.
> >
>
> Drivers need not fight about minor numbers. That can be simply handled:
>
> int get_new_serial_minor()
> {
> static int minor;
>
> return minor++;
> }
>
> Any serial driver can call this when it initializes a new uart.
> Hot pluggable drivers have to hang on to their minors, and
> re-use.
It's a possible solution, if we get the ability for drivers to hang
on to their minors. However, I get the feeling that this isn't going
to happen before 2.6.
--
Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
http://www.arm.linux.org.uk/personal/aboutme.html
next prev parent reply other threads:[~2002-07-29 20:18 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-29 4:08 Serial core problems on embedded PPC David Gibson
2002-07-29 4:08 ` David Gibson
2002-07-29 9:00 ` Russell King
2002-07-29 9:00 ` Russell King
2002-07-29 14:44 ` Tom Rini
2002-07-29 14:44 ` Tom Rini
2002-07-29 17:17 ` [parisc-linux] 3 Serial issues up for discussion (was: Re: Serial core problems on embedded PPC) Russell King
2002-07-29 17:17 ` Russell King
2002-07-29 17:17 ` Russell King
2002-07-29 17:17 ` Russell King
2002-07-29 17:43 ` Tom Rini
2002-07-29 17:43 ` Tom Rini
2002-07-29 18:13 ` Benjamin Herrenschmidt
2002-07-29 18:13 ` Benjamin Herrenschmidt
2002-07-29 19:07 ` Tom Rini
2002-07-29 19:07 ` Tom Rini
2002-07-29 19:09 ` 3 Serial issues up for discussion (was: " Dan Malek
2002-07-29 19:09 ` Dan Malek
2002-07-29 19:46 ` Remco Treffkorn
2002-07-29 19:46 ` Remco Treffkorn
2002-07-29 20:18 ` Russell King [this message]
2002-07-29 20:18 ` Russell King
2002-07-30 2:54 ` 3 Serial issues up for discussion David S. Miller
2002-07-30 2:54 ` David S. Miller
2002-07-30 18:23 ` Remco Treffkorn
2002-07-30 18:47 ` Nicolas Pitre
2002-07-30 18:51 ` Russell King
2002-07-30 18:44 ` Nicolas Pitre
2002-07-29 18:15 ` 3 Serial issues up for discussion (was: Re: Serial core problems on embedded PPC) Matt Porter
2002-07-29 18:15 ` Matt Porter
2002-07-29 17:47 ` [parisc-linux] " Christoph Plattner
2002-07-29 17:47 ` Christoph Plattner
2002-07-29 22:19 ` Matthew Wilcox
2002-07-29 22:19 ` Matthew Wilcox
2002-07-30 14:36 ` Stuart MacDonald
2002-07-30 15:19 ` Matthew Wilcox
2002-07-30 15:43 ` Stuart MacDonald
2002-07-30 15:53 ` Russell King
2002-07-30 15:59 ` Greg KH
2002-07-30 16:06 ` Stuart MacDonald
2002-08-02 1:57 ` Jeff Randall
2002-07-30 2:51 ` 3 Serial issues up for discussion David S. Miller
2002-07-30 2:51 ` David S. Miller
2002-08-02 6:01 ` symbol card with orinoco_cs on mpc823 shaowei dai
2002-08-02 6:23 ` David Gibson
2002-08-02 6:36 ` Matthew Locke
2002-08-02 7:01 ` shaowei dai
[not found] ` <3D4AC468.83BCD667@opensource.se>
2002-08-03 1:30 ` shaowei dai
2002-07-30 1:12 ` Serial core problems on embedded PPC David Gibson
2002-07-30 1:12 ` David Gibson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20020729211829.F25451@flint.arm.linux.org.uk \
--to=rmk@arm.linux.org.uk \
--cc=benh@kernel.crashing.org \
--cc=dan@embeddededge.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.linuxppc.org \
--cc=remco@rvt.com \
--cc=trini@kernel.crashing.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.