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Old 07-25-2005, 10:43 AM   #1
Greek Acrobat
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USB device not recognized


I've been tinkering around following this article and managed to mount USB devices in Slackware 10.0. I followed the instructions in that howto and everything worked fine. I put together a couple of scripts to mount and unmount the device on /dev/sda1 and was happy.

This worked for a while. But rather suddenly the system isn't recognising the presence of any USB devices. cat /proc/scsi/scsi shows that no devices are attached. Dmesg also indicates no attached USB device.

I'm stumped. Why would the system suddenly stop recognizing devices after rebooting?
 
Old 07-25-2005, 11:11 AM   #2
egag
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did you do any upgrading lately ?
what's the version of udev that you use ? ( "udev -V " )

egag
 
Old 07-25-2005, 11:32 AM   #3
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No, no upgrading. udev -V gives me no output but this is a fresh install of Slackware 10.0 - I'm not sure if this tells this you or not.

I'm pretty sure I've done nothing that might affect this between it working and it not.

Thanks.
 
Old 07-25-2005, 11:43 AM   #4
egag
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well... did you try different usb devices with different cables in more than one usb port ?
( just to make sure it's not hw . )

and also, did you check the whole dmesg for any errors or warnings ?

egag
 
Old 07-25-2005, 12:17 PM   #5
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Yes, I've tried it with several devices, all not working.

Err... dmesg did give some errors... I gave the command again to see what they were and post them... but... apparently the device is recognised.

Perhaps it is hardware after all. I'll try some of my flatmates' devices with it.

Thanks.
 
Old 07-25-2005, 12:30 PM   #6
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Not working again. With another device in a different port.

dmesg output:
Code:
Initializing USB Mass Storage driver...
usb.c: registered new driver usb-storage
scsi1 : SCSI emulation for USB Mass Storage devices
  Vendor:           Model:                   Rev:
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi removable disk sda at scsi1, channel 0, id 0, lun 0
SCSI device sda: 252509 512-byte hdwr sectors (129 MB)
sda: Write Protect is off
 sda: sda1
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 2
USB Mass Storage support registered.
usb.c: USB disconnect on device 00:10.2-1 address 2
sda: Unit Not Ready, sense:
Info fld=0xa00 (nonstd), Current 00:00: sns = 70  2
Raw sense data:0x70 0x00 0x02 0x00 0x00 0x0a 0x00 0x00
sda : READ CAPACITY failed.
sda : status = 1, message = 00, host = 0, driver = 08
Info fld=0xa00 (nonstd), Current sd00:00: sns = 70  2
Raw sense data:0x70 0x00 0x02 0x00 0x00 0x0a 0x00 0x00
sda : block size assumed to be 512 bytes, disk size 1GB.
sda: test WP failed, assume Write Enabled
 sda: I/O error: dev 08:00, sector 0
 I/O error: dev 08:00, sector 0
 unable to read partition table
hub.c: new USB device 00:10.2-1, assigned address 3
usb_control/bulk_msg: timeout
sda: Unit Not Ready, sense:
Info fld=0xa00 (nonstd), Current 00:00: sns = 70  2
Raw sense data:0x70 0x00 0x02 0x00 0x00 0x0a 0x00 0x00
sda : READ CAPACITY failed.
sda : status = 1, message = 00, host = 0, driver = 08
Info fld=0xa00 (nonstd), Current sd00:00: sns = 70  2
Raw sense data:0x70 0x00 0x02 0x00 0x00 0x0a 0x00 0x00
sda : block size assumed to be 512 bytes, disk size 1GB.
sda: test WP failed, assume Write Enabled
 sda: I/O error: dev 08:00, sector 0
 I/O error: dev 08:00, sector 0
 unable to read partition table
usb_control/bulk_msg: timeout
sda: Unit Not Ready, sense:
Info fld=0xa00 (nonstd), Current 00:00: sns = 70  2
Raw sense data:0x70 0x00 0x02 0x00 0x00 0x0a 0x00 0x00
sda : READ CAPACITY failed.
sda : status = 1, message = 00, host = 0, driver = 08
Info fld=0xa00 (nonstd), Current sd00:00: sns = 70  2
Raw sense data:0x70 0x00 0x02 0x00 0x00 0x0a 0x00 0x00
sda : block size assumed to be 512 bytes, disk size 1GB.
sda: test WP failed, assume Write Enabled
 sda: I/O error: dev 08:00, sector 0
 I/O error: dev 08:00, sector 0
 unable to read partition table
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
usb.c: unable to get device descriptor (error=-110)
hub.c: new USB device 00:10.3-5, assigned address 2
usb.c: USB device not responding, giving up (error=-71)
hub.c: new USB device 00:10.3-5, assigned address 3
usb.c: USB device not responding, giving up (error=-71)
hub.c: new USB device 00:10.3-5, assigned address 4
usb.c: USB device not responding, giving up (error=-71)
The same device has just been recognised in another port.
 
  


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