Sancho Dauskardt wrote:
>
> Hi all,
>
> attached is a patch against 2.4.4. for the 0x7CC Vendor ID family of card
> readers (www.carry.com.tw).
> These things are sold under all sorts of names (Lexar, PSI, Pixo-media...).
>
> WARNING: kernel hacking & usb experience needed to get this going !
>
> What the driver can do:
> * R/W Compact Flash
> * R/W Memory Stick
> * R SmartMedia (slow) -- includes all the SSFDC mapping in a somewhat
> generic form.
>
> What the driver can't:
> * Write SSFDC ;-)
> * run for more than 48h non stop....
>
> Limitations:
> * No Firmware included due to NDA issues.
> * Reading the SSFDC Mapping table is terribly slow (if you want it to be
> reliable !).
> This is partially a device-firmware limitation and partially a linux-usb
> problem (again bulk urb queueing).
Can you please explain the exact nature of the problem you are seeing
with bulk urb queuing? Perhaps I missed it, but I don't recall seeing
problem reports from you about this before. The HCD developers are
trying pretty hard to fix all the bulk urb queuing bugs, so your help
would be much appreciated. Have you applied the recently posted patches
for uhci and usb-ohci. I think there might have been a usb-uhci patch,
too,
but I'm not sure. Please include a kernel log section showing the
problem
behavior and so on. I assume you are testing with the latest -ac patch?
Thanks,
Miles
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