Comment 59 for bug 247819

Maxim Levitsky (maximlevitsky) wrote :

Can anyone test 2.6.35 kernel from 10.10 to confirm that you still have that issue?

It was found that this controller supports DMA but doesn't tell the linux that it does. Therefore linux would revert to using slow PIO mode (cpu runs in a loop and read data byte after byte).
I think this causes timeouts, and one of you even noticed that increasing timeout helps.

Btw, it contains a driver to read xD cards as well (mine :-))
I hope I will eventually write the MemoryStick driver as well.