Re: USB storage: error connecting to phone's storage

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On Thu, 18 Mar 2010, Jeff Garzik wrote:

> My Samsung Reclaim phone, by default, connects via USB as a USB modem. 
> According to the phone's manual, I have to select Tools -> Mass Storage 
> -> Connect to PC to make it work as traditional USB storage. 
> Unfortunately, Fedora kernel 2.6.30.10 yields
> 
> > usb 7-1: new full speed USB device using uhci_hcd and address 5
> > usb 7-1: New USB device found, idVendor=04e8, idProduct=6640
> > usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> > usb 7-1: Product: SAMSUNG CDMA Technologies
> > usb 7-1: Manufacturer: SAMSUNG Electronics Bo.,Ltd.
> > usb 7-1: configuration #1 chosen from 1 choice
> > cdc_acm 7-1:1.0: ttyACM0: USB ACM device
> 	<-- here is where I select Tools/Mass Storage/Connect to PC
> > usb 7-1: USB disconnect, address 5
> > usb 7-1: new full speed USB device using uhci_hcd and address 6
> > usb 7-1: New USB device found, idVendor=05c6, idProduct=1000
> > usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
> > usb 7-1: Product: USB MMC Storage
> > usb 7-1: Manufacturer: Qualcomm, Incorporated
> > usb 7-1: SerialNumber: 000000000002
> > usb 7-1: configuration #1 chosen from 1 choice
> > usb-storage: probe of 7-1:1.0 failed with error -5
> 
> Is this a known problem?

I haven't heard of it before.  Can you collect a usbmon trace showing 
what happens?  See Documentation/usb/usbmon.txt for instructions.

Alan Stern

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