From: Kay Sievers <kay.sievers@vrfy.org>
To: linux-hotplug@vger.kernel.org
Subject: Re: how to determine physical bus of a device and find it there
Date: Thu, 22 Jan 2004 23:27:23 +0000 [thread overview]
Message-ID: <20040122232723.GA2196@vrfy.org> (raw)
In-Reply-To: <20040120025230.GA26199@vrfy.org>
On Thu, Jan 22, 2004 at 02:58:35PM -0800, Greg KH wrote:
> On Thu, Jan 22, 2004 at 02:40:46PM -0800, Greg KH wrote:
> >
> > So what udev needs to do is look at each device along that "stack" in
> > order to get a match. If a user specifies a idProduct sysfs file that
> > is on the usb device at
> > /sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1:1.0 we should be able
> > to match that up with this scsi block device, if so asked.
> >
> > It would also "solve" the problem where someone wanted to specify the
> > idProduct and idVendor for a usb printer, but udev couldn't find it.
>
> And here's a horrible abuse of gotos that adds this support to udev.
Oh, I like goto's too. :)
Cool, works for me.
Maybe "try_parent:" sounds better than "no_good" :)
I will port it to udevinfo and print the keys with its correspondig BUS,
so it should be easy for the user to build a rule.
Btw. another question, do you know why this ugly multiline info is here?
Doesn't it violate the sysfs conventions?
kay@pim:/sys$ cat ./devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32/32:0:0:1/info
Host scsi32: usb-storage
Vendor: SMSC
Product: USB 2 Flash Media Device
Serial Number: 0305037000C2
Protocol: Transparent SCSI
Transport: Bulk
Quirks:
thanks,
Kay
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next prev parent reply other threads:[~2004-01-22 23:27 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-20 2:52 how to determine physical bus of a device and find it there Kay Sievers
2004-01-20 14:09 ` Olaf Hering
2004-01-22 22:40 ` Greg KH
2004-01-22 22:58 ` Greg KH
2004-01-22 23:27 ` Kay Sievers [this message]
2004-01-22 23:42 ` Kay Sievers
2004-01-23 1:42 ` Greg KH
2004-01-23 1:43 ` Greg KH
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