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Old 06-01-2008, 08:23 AM
Julien Valroff
 
Default Bug#473800: #473800- linux-image-2.6.24: Multiple "Reset high speed USB device using ehci_hcd"

Hi,

I am having more or less the same issue with 2.6.25, using an USB card
reader.

I always get "Reset high speed USB device using ehci_hcd" entries in my
logs, but after unplugging and re-plugging the device, they do not
appear anymore.

However, I haven't noticed any system crash wince I have acquired this
card reader.

I have tried disabling the USB auto-suspend, or changing the value of
the idle-delay (default to 2 secs), without success.

(log entries after booting, device connected)
[...]
Jun 1 09:54:03 athyr kernel: [ 95.238361] usb 7-3: reset high speed USB device using ehci_hcd and address 2
Jun 1 09:55:15 athyr kernel: [ 130.876600] usb 7-3: reset high speed USB device using ehci_hcd and address 2
Jun 1 09:55:53 athyr kernel: [ 149.873816] usb 7-3: reset high speed USB device using ehci_hcd and address 2
[...]

[ 489.675592] usb 7-3: new high speed USB device using ehci_hcd and address 5
[ 489.713724] usb 7-3: configuration #1 chosen from 1 choice
[ 489.713958] scsi9 : SCSI emulation for USB Mass Storage devices
[ 489.714951] usb 7-3: New USB device found, idVendor=058f, idProduct=6362
[ 489.714955] usb 7-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 489.714957] usb 7-3: Product: Mass Storage Device
[ 489.714959] usb 7-3: Manufacturer: Generic
[ 489.714962] usb 7-3: SerialNumber: 058F312D81B
[ 489.714968] usb-storage: device found at 5
[ 489.714970] usb-storage: waiting for device to settle before scanning
[ 490.507881] usb-storage: device scan complete
[ 409.114303] scsi 9:0:0:0: Direct-Access Generic USB SD Reader 1.00 PQ: 0 ANSI: 0
[ 409.114983] scsi 9:0:0:1: Direct-Access Generic USB CF Reader 1.01 PQ: 0 ANSI: 0
[ 409.115552] scsi 9:0:0:2: Direct-Access Generic USB SM Reader 1.02 PQ: 0 ANSI: 0
[ 409.116177] scsi 9:0:0:3: Direct-Access Generic USB MS Reader 1.03 PQ: 0 ANSI: 0
[ 409.117596] sd 9:0:0:0: [sdb] Attached SCSI removable disk
[ 409.150537] sd 9:0:0:1: [sdc] Attached SCSI removable disk
[ 490.567810] sd 9:0:0:2: [sdd] Attached SCSI removable disk
[ 490.569921] sd 9:0:0:3: [sde] Attached SCSI removable disk

# lsusb
Bus 007 Device 004: ID 058f:6362 Alcor Micro Corp. Hi-Speed 21-in-1 Flash Card Reader/Writer (Internal/External)
[...]

Cheers,
Julien




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