The comments on the header reads "low performance usb device" (or
something like that).

When I plug my "Guru" thumbdisk (Easydisk was the original name I
found in the net).  It RED LED erratically lighted and registered a
lot of errors on dmesg:

ohci_hcd: 2004 Feb 02 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
usb 4-1: new full speed USB device using address 2
ub: sizeof ub_scsi_cmd 60 ub_dev 940
uba: device 2 capacity nsec 50 bsize 512
uba: made changed
uba: device 2 capacity nsec 50 bsize 512
uba: device 2 capacity nsec 50 bsize 512
 uba:end_request: I/O error, dev uba, sector 0
Buffer I/O error on device uba, logical block 0
end_request: I/O error, dev uba, sector 2
Buffer I/O error on device uba, logical block 1
end_request: I/O error, dev uba, sector 4
Buffer I/O error on device uba, logical block 2
end_request: I/O error, dev uba, sector 6
Buffer I/O error on device uba, logical block 3
end_request: I/O error, dev uba, sector 6
Buffer I/O error on device uba, logical block 3
end_request: I/O error, dev uba, sector 4
Buffer I/O error on device uba, logical block 2
end_request: I/O error, dev uba, sector 2
Buffer I/O error on device uba, logical block 1
end_request: I/O error, dev uba, sector 0
Buffer I/O error on device uba, logical block 0
 unable to read partition table
 uba:end_request: I/O error, dev uba, sector 2
Buffer I/O error on device uba, logical block 1
end_request: I/O error, dev uba, sector 4
Buffer I/O error on device uba, logical block 2
end_request: I/O error, dev uba, sector 6
Buffer I/O error on device uba, logical block 3
end_request: I/O error, dev uba, sector 0
Buffer I/O error on device uba, logical block 0
 unable to read partition table
usbcore: registered new driver ub



here are the modules loaded

ub
uhci_hcd 
ehci_hcd 
usb-storage

Hmmm... maybe the low performance driver + low performance usbdisk
doesn't work on 2.6.9. Its the "ub" modules that makes the thumbdisk
erratically behave.




On Tue, 30 Nov 2004 23:15:03 -0800 (PST), Pablo Manalastas
<[EMAIL PROTECTED]> wrote:
> The block device support for /dev/uba can be found
> in $LINUXSRC/drivers/block/ub.c, and the file is dated
> October 19, 2004, and so is relatively new.  This file
> ub.c defines the "/dev/ub" device name and assigns a
> major device number of 125, from the experimental
> range (see $LINUXSRC/Documentation/devicesd.txt, and
> you will see that 125 is not assigned, so this is
> pretty new).
>
--
Philippine Linux Users' Group (PLUG) Mailing List
[EMAIL PROTECTED] (#PLUG @ irc.free.net.ph)
Official Website: http://plug.linux.org.ph
Searchable Archives: http://marc.free.net.ph
.
To leave, go to http://lists.q-linux.com/mailman/listinfo/plug
.
Are you a Linux newbie? To join the newbie list, go to
http://lists.q-linux.com/mailman/listinfo/ph-linux-newbie

Reply via email to