[TriLUG] more than one USB device

[Daniel Monjar]

I have a USB camera and now a USB 'DiskOnKey' device.  When I plug the 
first one in everything works as expected.  But when I plug the 2nd in I 
get 'disk not recognized errors':

Feb  3 10:15:33 dam kernel: hub.c: new USB device 00:1f.2-1, assigned 
address 3
Feb  3 10:15:33 dam kernel: scsi5 : SCSI emulation for USB Mass Storage 
devices
Feb  3 10:15:33 dam kernel:   Vendor: M-Sys     Model: DiskOnKey 
Rev: 4.70
Feb  3 10:15:33 dam kernel:   Type:   Direct-Access 
ANSI SCSI revision: 02
Feb  3 10:15:33 dam kernel: Attached scsi removable disk sdd at scsi5, 
channel 0, id 0, lun 0
Feb  3 10:15:33 dam /etc/hotplug/scsi.agent: sd_mod allready loaded
Feb  3 10:15:33 dam kernel: usb-uhci.c: interrupt, status 3, frame# 302
Feb  3 10:15:33 dam kernel: sdd : READ CAPACITY failed.
Feb  3 10:15:33 dam kernel: sdd : status = 1, message = 00, host = 0, 
driver = 08
Feb  3 10:15:33 dam kernel: Current sd00:00: sense key Unit Attention
Feb  3 10:15:33 dam kernel: Additional sense indicates Medium not present

But if I reboot the problem goes away.  How can I make the system forget 
about the first device without rebooting?

-- 
Daniel Monjar
Manager, Technical Services
bioMérieux, Inc.
Durham, NC US
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