[NCLUG] Referring to an external USB device?

[Lajiri Cabrera]

Not sure if this will help, but make sure your USB device has the correct permissions assigned. I had a similar problem with a digital camera where I was unable to load a client application that connected to it via USB. To assign necessary permissions under RH 9:

Step 1. Find the device
	a.) To check, type: ls /proc/bus/usb/001
		001, would be your first USB port, 002 your second, etc.
	b.) Write down the device file name (not the 001, e.g. 006)

Step 2. Edit the permissions
	Type: su -c 'chmod a+w /proc/bus/usb/001/006'
	(The 006 would have been the device number you wrote down in step 2b.)

Regards,
Lajiri F Cabrera

----- Original Message -----
From: Anthony Earl <Anthony.Earl at MountainAvenue.com>
Date: Tue, 10 Jun 2003 12:21:57 -0600 
To: nclug at nclug.org
Subject: [NCLUG] Referring to an external USB device?

> When I attach an I/O Magic DVD+RW external USB drive, I see the enclosed 
> from the kernel.  What would the name of the device be?  This is on a 
> laptop with no other USB devices and no SCSI devices.  Debian (testing) 
> is the OS with a 2.14.18 customized kernel.
> 
> xcdroast cannot see it.  I've tried various device names with ogle and a 
> DVD movie in there.  
> 
> I found that http://fy.chalmers.se/~appro/linux/DVD+RW/ has a lot of 
> information about DVD+-RW burning for Linux but it specifically does not 
> cover getting the USB connected.
> 
> Any suggestions?
> 
> Thanks,
>     Ant.
> 
> ---------------
> 
> Jun 10 10:26:07 zoopia kernel: hub.c: USB new device connect on bus1/2, 
> assigned device number 4
> Jun 10 10:26:07 zoopia kernel: scsi0 : SCSI emulation for USB Mass 
> Storage devices
> Jun 10 10:26:08 zoopia usbmgr[642]: vendor:0xc0b product:0xb001
> Jun 10 10:26:08 zoopia usbmgr[642]: class:0x8 subclass:0x6 protocol:0x50
> Jun 10 10:26:08 zoopia usbmgr[642]: USB device is matched the configuration
> Jun 10 10:26:08 zoopia modprobe: modprobe: Can't locate module usb-storage
> Jun 10 10:26:08 zoopia usbmgr[642]: "scsi_mod" was loaded
> Jun 10 10:26:08 zoopia usbmgr[642]: "sd_mod" was loaded
> Jun 10 10:26:08 zoopia usbmgr[642]: "usb-storage" was loaded
> Jun 10 10:26:08 zoopia kernel:   Vendor: IDE-DVD   Model: 
> DVDRW6002         Rev: 1.13
> Jun 10 10:26:08 zoopia kernel:   Type:   
> CD-ROM                             ANSI SCSI revision: 02

> Jun 10 10:26:08 zoopia kernel: WARNING: USB Mass Storage data integrity 
> not assured
> 
> -----------------
> 
> 
> 
> 
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