On Tue, 31 Jan 2006, Alexey Golovachov wrote:

> Hi.
> 
> I've completely lost to get SonyEricsson K750i working on my linux box.
> It should be discovered as usb-mass-storage device with no additional issues.
> But, ufrtunately, not for me.
> I've already tried kernels 2.6.11.4-21.9 (SuSE9.3), fresh one 2.6.14.6 
> On Ubuntu distro I had some success attempts, some - unsuccessful. It's 
> strange :(
> I'm not experienced in USB protocols, so, please, could find out an error in 
> communication.
> 
> Linux UKR0889164 2.6.14.6-default #2 PREEMPT Tue Jan 31 11:56:11 EET 2006 
> i686 i686 i386 GNU/Linux

The communication was partly successful.  The system was able to get the
total size of the storage device:

> Jan 30 09:45:55 Xenon kernel: SCSI device sda: 248832 512-byte hdwr sectors 
> (127 MB)

The error occurred when the computer tried to read some sectors near the 
end:

> Jan 30 09:45:55 Xenon kernel: usb-storage: Command READ_10 (10 bytes)
> Jan 30 09:45:55 Xenon kernel: usb-storage:  28 00 00 03 cb 80 00 00 08 00

Trying to read 8 sectors starting at sector 0x03cb80 = 248704 shouldn't 
present any problem since the total number of sectors is 248832.  
Nevertheless, the device crashed:

> Jan 30 09:45:55 Xenon kernel: usb-storage: Bulk Command S 0x43425355 T 0xe L 
> 4096 F 128 Trg 0 LUN 0 CL 12
> Jan 30 09:45:55 Xenon kernel: usb-storage: usb_stor_bulk_transfer_buf: xfer 
> 31 bytes
> Jan 30 09:45:55 Xenon kernel: usb-storage: Status code 0; transferred 31/31
> Jan 30 09:45:55 Xenon kernel: usb-storage: -- transfer complete
> Jan 30 09:45:55 Xenon kernel: usb-storage: Bulk command transfer result=0
> Jan 30 09:45:55 Xenon kernel: usb-storage: usb_stor_bulk_transfer_sglist: 
> xfer 4096 bytes, 1 entries
> Jan 30 09:46:22 Xenon hald[7199]: Timed out waiting for hotplug event 1379. 
> Rebasing to 1381
> Jan 30 09:46:25 Xenon kernel: usb-storage: command_abort called

There's no easy way to find out why it crashed.  Maybe if you turn off the 
haldaemon program (hald), the device will work better.

Alan Stern



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