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Re: [PATCH] PCI serial card support
From: |
Robert Millan |
Subject: |
Re: [PATCH] PCI serial card support |
Date: |
Tue, 4 Nov 2008 16:39:50 +0100 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
On Mon, Nov 03, 2008 at 04:38:02PM -0800, address@hidden wrote:
> The problem with using a PCI serial card for the console is that many
> PCI cards use a different crystal than the IBM PC standard. This means
> that serial drivers wind up computing the wrong divisor when trying to
> set the baud rate. This patch solves this problem by adding the `--base'
> parameter to the `serial' command. The allows you to set the base baud
> (typically the highest baud rate supported by the device) so that PCI
> cards with non-standard crystal frequencies can be supported. For example,
> the option I use with my PCI serial card is:
>
> serial --port=0xe880 --speed=115200 --base=921600
Hi!
Is there no better way to do this than queriing the user? Can you read this
info from the device itself, or from its PCI id?
--
Robert Millan
The DRM opt-in fallacy: "Your data belongs to us. We will decide when (and
how) you may access your data; but nobody's threatening your freedom: we
still allow you to remove your data and not access it at all."
- [PATCH] PCI serial card support, donald . d . dugger, 2008/11/03
- Re: [PATCH] PCI serial card support,
Robert Millan <=
- RE: [PATCH] PCI serial card support, Dugger, Donald D, 2008/11/04
- Re: [PATCH] PCI serial card support, Robert Millan, 2008/11/05
- RE: [PATCH] PCI serial card support, Dugger, Donald D, 2008/11/05
- Re: [PATCH] PCI serial card support, Robert Millan, 2008/11/06
- RE: [PATCH] PCI serial card support, Dugger, Donald D, 2008/11/06
- Re: [PATCH] PCI serial card support, Robert Millan, 2008/11/06
- RE: [PATCH] PCI serial card support, Dugger, Donald D, 2008/11/06
- RE: [PATCH] PCI serial card support, Dugger, Donald D, 2008/11/06
- Re: [PATCH] PCI serial card support, n0ano, 2008/11/07
- Re: [PATCH] PCI serial card support, Vesa Jääskeläinen, 2008/11/07