From: Thomas Frayne <tomf@sjpc.org>
To: linux-hotplug@vger.kernel.org
Subject: usb scanner configuration: udev
Date: Mon, 10 Jan 2005 16:27:14 +0000 [thread overview]
Message-ID: <1105374433.5028.313.camel@localhost.localdomain> (raw)
My problem looks similar to the one described in the the No Hotplug Events thread.
I am running on an up to date Fedora Core 3 system, and have installed
sane-backends 1.0.15-1.4 and xsane 0.92-13 via synaptic. Over the last
18 months, I have periodically tried to get my HP 7450C scanner working
under SANE, but was never completely successful. This time I succeeded.
Now I find that /dev/scanner-usb-:proc:bus:usb:002:010 is a link to
/proc/bus/usb/002/010, but the device name changes when I reboot. I
would like to use udev to create a constant device name
/dev/usb/scanner0 for this device. I put entry
SYSFS{product}="hp scanjet 7400c", SYMLINK="as/Scanjet"
into /etc/udev/rules.d/09-tom.rules. However, if I unplug the scanner
and plug it back in, the log indicates
Jan 2 23:34:23 PCasus kernel: usb 2-1.1: USB disconnect, address 10
Jan 2 23:34:26 PCasus kernel: usb 2-1.1: new full speed USB device
using address 11
It has no udev log entry.
Before the device address changed /proc/bus/usb/devices contained:
T: Bus\x02 Lev\x02 Prnt\x02 Port\0 Cnt\x01 Dev#= 10 Spd\x12 MxCh= 0
D: Ver= 1.00 Cls\0(>ifc ) Sub\0 Prot\0 MxPS= 8 #Cfgs= 1
P: Vendor\x03f0 ProdID\b01 Rev= 0.01
S: Manufacturer=hp
S: Product=hp scanjet 7400c
S: SerialNumber‡ tem 7400c
C:* #Ifs= 1 Cfg#= 1 Atr@ MxPwr= 2mA
I: If#= 0 Alt= 0 #EPs= 3 Cls\0(>ifc ) Sub\0 Prot\0 Driver=(none)
E: Ad\x01(O) Atr\x02(Bulk) MxPS= 8 Ivl=0ms
E: Ad‚(I) Atr\x03(Int.) MxPS= 8 Ivl\x10ms
E: Adƒ(I) Atr\x02(Bulk) MxPS= 64 Ivl=0ms
What is going wrong with udev?
cat /proc/sys/kernel/hotplug returns /sbin/hotplug
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next reply other threads:[~2005-01-10 16:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-10 16:27 Thomas Frayne [this message]
2005-01-10 16:50 ` usb scanner configuration: udev Greg KH
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