On Thu, 23 Sep 2010, Loïc Minier wrote:
> When you say SDIO, you mean just SDIO or SD and SDIO?
I wrote a driver for one SD/SDIO host controller, played with the code
for two other controllers, and wrote part of the SDIO stack. All this
share common infrastructure with pure SD cards. Hence my interest in
the topic due to the overlap, especially at the low level. I'm less
familiar with the filesystem issues that Arnd is mentioning though.
> SDIO came up, but the main request from TSC-Ms was for _SD_ and I
> inferred that this meant SD as a mass storage. I suspect it's getting
> common to get cheaper by getting rid of flash and using just SD in
> phones and DTVs.
Indeed.
> However, I didn't check whether it was "anything impacting fs on SD",
> which means we might want to look at filesystems, nor how important
> SDIO was here. In fact, I didn't think of FSes at all, just thought
> about the throughput of the SD subsystem and specific SD backend
> drivers.
SDIO is also becoming important as this is often the preferred
interconnect for wireless chips.
Nicolas
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