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Old 10-24-2009, 10:23 PM   #1
sinkpen
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Device: PRS-600
RESOLVED: Linux kernel doesn't detect PRS-600 external memory

I've recently purchased a memory stick pro duo (2G) for my PRS-600. When the card is in the reader and the reader is plugged into the computer only the internal memory is detected by Linux.

I get this output from dmesg:

usb 1-5: new high speed USB device using ehci_hcd and address 5
usb 1-5: configuration #1 chosen from 2 choices
scsi13 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 5
usb-storage: waiting for device to settle before scanning
scsi 13:0:0:0: Direct-Access Sony PRS-600 1.00 PQ: 0 ANSI: 2
usb-storage: device scan complete
sd 13:0:0:0: [sde] 802560 512-byte logical blocks: (410 MB/391 MiB)
sd 13:0:0:0: [sde] Write Protect is off
sd 13:0:0:0: [sde] Mode Sense: 0f 00 00 00
sd 13:0:0:0: [sde] Assuming drive cache: write through
sd 13:0:0:0: [sde] Assuming drive cache: write through
sde:
sd 13:0:0:0: [sde] Assuming drive cache: write through
sd 13:0:0:0: [sde] Attached SCSI removable disk


It doesn't not detected even the presence of the memorystick. Is there any particular kernel config option I am supposed to have selected? My kernel is custom and thus doesn't have support for everything.

Thanks,

Steve Inkpen

Last edited by sinkpen; 10-30-2009 at 01:52 PM.
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Old 10-25-2009, 03:34 AM   #2
celemark
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I'm not sure which distro or kernel you're running, but you probably just need to enable "CONFIG_SCSI_MULTI_LUN" when you compile your kernel. You could also run "rescan-scsi-bus -l" (as root) and see if that picks up your memory stick.

I had a similar problem on Slackware 12.0 where it would only recognize the first disk in an external disk array, but running "rescan-scsi-bus -l" after bootup would detect all the disks and allow me to mount them.
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Old 10-25-2009, 07:01 PM   #3
tovare
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I'm currently runnig Ubuntu 9.10 and 4 'devices'are recognized when connecting my reader.

9099.324099] usb 2-1: new high speed USB device using ehci_hcd and address 6
[ 9099.474117] usb 2-1: configuration #1 chosen from 2 choices
[ 9099.476908] scsi7 : SCSI emulation for USB Mass Storage devices
[ 9099.477202] usb-storage: device found at 6
[ 9099.477208] usb-storage: waiting for device to settle before scanning
[ 9104.478280] usb-storage: device scan complete
[ 9104.479344] scsi 7:0:0:0: Direct-Access Sony PRS-600 1.00 PQ: 0 ANSI: 2
[ 9104.481336] scsi 7:0:0:1: Direct-Access Sony PRS-600 MS 1.00 PQ: 0 ANSI: 2
[ 9104.483327] scsi 7:0:0:2: Direct-Access Sony PRS-600 SD 1.00 PQ: 0 ANSI: 2
[ 9104.485335] scsi 7:0:0:3: Direct-Access Sony PRS-600 Launcher 1.00 PQ: 0 ANSI: 2
[....]
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Old 10-26-2009, 11:26 AM   #4
Hanselda
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Quote:
Originally Posted by celemark View Post
I'm not sure which distro or kernel you're running, but you probably just need to enable "CONFIG_SCSI_MULTI_LUN" when you compile your kernel.
Most of the time this is the problem for the custom kernel. Most of the users will forget about this option, it is not default and is not under USB driver options but under SCSI.
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Old 10-30-2009, 01:50 PM   #5
sinkpen
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I recompiled the kernel with the config from Gentoo's liveDVD. This closed the issue I was having.

You are most likely right about the missing CONFIG_SCSI_MULTI_LUN option. I am pretty sure that the option was not set in my custom kernel build.

Thanks
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