Re: Driver for In-System USB hard drive box

[David Brownell <david-b@pacbell.net>]

Cut/pasted from some email of yesterday is the way to find out
what's really going on ... try with the latest scripts.

- Dave

So the problem is only to find out why the usb.agent script doesn't
handle it.  I have my guess below ... but you can debug such things
yourself pretty easily.

You can snapshot the environment variables given to the hotplug
script, or an agent, by adding a line line "env > /tmp/variables"
to the script.  Then turn those into a script that just assigns and
exports (!) the variables listed up at the front ... use it to call
"sh -x usb.agent" (or "pci.agent" or whatever) to see exactly
what it's doing.  With that kind of debug output, it's easy to find
and fix problems.

----- Original Message ----- 
From: "Richard G. Holst" <rgholst@adelphia.net>
To: <linux-hotplug-devel@lists.sourceforge.net>
Sent: Monday, March 05, 2001 2:38 PM
Subject: Driver for In-System USB hard drive box


> All,
> 
> I am a bit confused and need some help.
> 
> I am trying to get my external USB hard drive manufactured by In-Systems
> Design  to connect to my RedHat 7.0 running a 2.4.2 Kernel. The hardware is
> an Asus P5A motherboard with 128 MB of ram and a K6-3-450 Processor.
> 
> I checked and made sure the HotPlug was turned on and all the USB stuff in
> the kernel was set to module. I can manually load the usb-ochi and the
> usb-storage modules. When I load the storage module, I can see the LED on
> the USB drive blink four different times. I checked the
> /proc/sys/kernel/hotplug file and it does contain the path to /sbin/hotplug.
> I put a echo statement in the /sbin/hotplug file as a test, and the file
> does execute every time I plug the USB drive in and every time I unplug it.
> Further investigation found that the /var/log/messages file was having the
> following lines added when I plugged the drive in:
> 
> kernel:  hub.c  USB new device connected on bus1/1, assigned device number
> 5
> 
> /sbin/hotplug: ... no driver for USB product 5ab/31/100
> 
> I though that the usb-storage.o file was the drive of USB storage devices?
> 
> Does the USB hard drive require a special driver in addition to the modules
> I have already loaded?
> 
> I checked the WEB site of In-Systems and there is no Linux drive posted. I
> emailed their tech support and the claim that I should not need a driver for
> Linux that it is already built into Linux.
> 
> Could someone please explain?  Does every USB device I want to connect to
> Linux need an additional driver or are some drivers already present? How do
> I know which drivers to use?
> 
> Thanks in advance,
> 
> Dick Holst
> K2RH
> 
> 
> 
> 
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