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broken devfs-support in SGI Zilog8530 serial driver

To: linux-mips@oss.sgi.com
Subject: broken devfs-support in SGI Zilog8530 serial driver
From: raoul@shuttle.de (Raoul Borenius)
Date: Fri, 29 Mar 2002 11:32:44 +0100
Cc: devfs@oss.sgi.com
Sender: owner-linux-mips@oss.sgi.com
User-agent: Mutt/1.3.28i
Hi,

I'm not sure if this is a devfs or mips problem so I'm sending it
to both lists.

I just compiled my own mips-kernel from oss.sgi.com:/cvs to get
devfs-support. Unfortunately there seems to be a problem with the
serial-driver at least in the linux_2_4 branch:

SGI Zilog8530 serial driver version 1.00
devfs_register(ttyS): could not append to parent, err: -17
devfs_register(cua): could not append to parent, err: -17
tty00 at 0xbfbd9830 (irq = 29) is a Zilog8530
tty01 at 0xbfbd9838 (irq = 29) is a Zilog8530

The result is that the directories /dev/tts and /dev/cua are missing.

There are only the files /dev/ttS and /dev/cua which can be used to get
access to the first serial port.

I have attached the full dmesg output at the end.

Regards

Raoul

Attachment: dmesg
Description: Text document

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