On Tue, 20 Nov 2007 14:52:37 +0000
Dean Jenkins <[email protected]> wrote:
> Hi Pierre,
>
> My card driver needed to set the R/W E4MI bit in the Card Capability
> register (0x08) in CCCR (function 0). Perhaps it is unnecessary ?
>
That bit is pointless given the current design of the MMC layer, so it shouldn't be necessary.
> BTW. It is easy to for the card driver to access function 0 registers by
> doing the following...
>
Of course. Any driver can do whatever it pleases since it is in kernel space. But you won't make any friends if you keep trying to bypass every system in the kernel. ;)
(Not to mention you'll have a lot more work on your hands.)
Rgds
--
-- Pierre Ossman
Linux kernel, MMC maintainer http://www.kernel.org
PulseAudio, core developer http://pulseaudio.org
rdesktop, core developer http://www.rdesktop.org
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