Messages in this thread | | | Date | Mon, 19 Apr 2004 14:50:24 +0200 | From | Vanja Hrustic <> | Subject | USB problems: SanDisk SDDR-75 / Apacer AP-MSCRU10 card readers |
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I have purchased SanDisk SDDR-75 card reader, since it was reported on quite few places to work (even with RH 7.3) ok on Linux.
However, I am experiencing problems with it, as well as with another reader I have (Apacer AP-MSCRU10).
Kernel is 2.4.26 (tried 2.4.25 as well), on RedHat 9. System is XP2500, on NForce2 motherboard.
Basically, when I plug card reader into USB port, it gets initialized but strange things happen. Sometimes, machine hangs completely, sometimes it hangs when I issue fdisk or mount commands, and in cases when it doesn't hang, I can't see CF disks in the drive. In rare cases when I do see the CF and can mount it, any bigger (more than 2-3MB) copy operation to CF will hang, and I have to disconnect the reader.
SanDisk SDDR-75 has 2 slots, Apacer AP-MSCRU10 has 3 slots.
But if I connect the digital camera (Nikon CoolPix 4300, has one CF slot), everything works just fine, and I have no trouble with it.
I have also tried changing /etc/modules.conf and adding options scsi_mod max_scsi_luns=X (where X was anywhere between 0 and 6, depending on what was connected and if SCSI emulation was enabled for CD-ROMs). I have seen this suggestion for some card readers, but it didn't help in my case.
I have attached output of 'grep "=[y|m]" .config' file to this mail.
Outputs (from /var/log/messages) for SanDisk, Apacer and Nikon are placed at:
SanDisk SDDR-75 http://www.vanja.com/reader/sandisk.txt
Apacer AP-MSCRU10 http://www.vanja.com/reader/apacer.txt
Nikon CoolPix 4300 http://www.vanja.com/reader/nikon.txt
There are no errors when Nikon is connected, but SanDisk/Apacer give errors like:
usb-storage: Fixing INQUIRY data to show SCSI rev 2 - was 0
lspci -vvv output: http://www.vanja.com/reader/lspci.txt
I can provide much more details (for example, when I try to access the device, if computer doesn't hang, much more errors come out), and I would appreciate any help (or pointers as what else to try, where to look) with this. I don't want to send too much output to the list, so I don't mind continuing this off the list - I would post the summary later, if I manage to fix this.
Thanks.
Vanja [unhandled content-type:application/octet-stream] | |