From: Thomas Winischhofer <thomas@winischhofer.net>
To: Davide Libenzi <davidel@xmailserver.org>,
lkml <linux-kernel@vger.kernel.org>
Subject: SiS USB IRQ (Was: [patch] sis650 irq router fix for 2.4.x)
Date: Tue, 27 May 2003 12:59:52 +0200 [thread overview]
Message-ID: <3ED34528.90702@winischhofer.net> (raw)
In-Reply-To: Pine.LNX.4.55.0305261431230.3000@bigblue.dev.mcafeelabs.com
Not relevant to the 650, but for the 630: Going through the datasheet
revealed that the 630 (with built-in Super South Bridge) does not know
register 0x62 (of the "ISA bridge", speak the irq router, 00:01.0,
1039:0008, revision 0) - it's reserved there, but the datasheets states
explicitly that bit 7 should be set to 1.
The USB interrupts and their routing is determined by bit 8 register
0x04 of the USB OHCI configuration space (00:01.2 and 00:01.3).
Perhaps some interrupt guru knows what to do with this information and
is able to verify that the current implementation does this right...
Thomas
--
Thomas Winischhofer
Vienna/Austria
thomas AT winischhofer DOT net *** http://www.winischhofer.net/
twini AT xfree86 DOT org
prev parent reply other threads:[~2003-05-27 10:46 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-26 13:55 [patch] sis650 irq router fix for 2.4.x Thomas Winischhofer
2003-05-26 17:20 ` Davide Libenzi
2003-05-26 21:52 ` Davide Libenzi
2003-05-27 9:11 ` Thomas Winischhofer
2003-05-27 17:06 ` Davide Libenzi
2003-05-27 16:45 ` Alan Cox
2003-05-27 17:53 ` Davide Libenzi
2003-05-27 20:45 ` Thomas Winischhofer
2003-05-27 20:42 ` Thomas Winischhofer
2003-05-27 20:51 ` Alan Cox
2003-05-27 22:48 ` Thomas Winischhofer
2003-05-27 22:29 ` Davide Libenzi
2003-05-27 22:55 ` Thomas Winischhofer
2003-05-27 22:58 ` Davide Libenzi
2003-05-27 10:59 ` Thomas Winischhofer [this message]
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=3ED34528.90702@winischhofer.net \
--to=thomas@winischhofer.net \
--cc=davidel@xmailserver.org \
--cc=linux-kernel@vger.kernel.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.