hi all, especially brian and takashi,
some time ago, i've been developing the driver for the lx6464es ethersound sound card, which has been included into the kernel for some time. however i haven't been able to use it in kernels after 2.6.33.
today, i was able to bisect the issue and the first bad commit is:
commit 6175ddf06b6172046a329e3abfd9c901a43efd2e Author: Brian Gerst brgerst@gmail.com Date: Fri Feb 5 09:37:07 2010 -0500
x86: Clean up mem*io functions.
Iomem has no special significance on x86. Use the standard mem* functions instead of trying to call other versions. Some fixups are needed to match the function prototypes.
Signed-off-by: Brian Gerst brgerst@gmail.com LKML-Reference: 1265380629-3212-6-git-send-email-brgerst@gmail.com Signed-off-by: H. Peter Anvin hpa@zytor.com
the problem was: the sound card could only be started once, but i haven't been able to start it a second time, probably because the driver doesn't shut down the device correctly.
the communication with the device is done by passing simple commands via memcpy_fromio and memcpy_toio (compare sound/pci/lx6464es/lx_core.c, lines 75 to 99). any idea, what is going wrong there?
thanks, tim