Re: [PATCH] [MEMSTICK] Initial commit for Sony MemoryStick support

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Monday 31 December 2007 00:31:12 Jan Engelhardt wrote:
> On Dec 31 2007 00:01, Carlos Corbacho wrote:
> >On Monday 24 December 2007 03:06:37 [email protected] wrote:
> >> From: Alex Dubov <[email protected]>
> >>
> >> Sony MemoryStick cards are used in many products manufactured by Sony.
> >> They are available both as storage and as IO expansion cards. Currently,
> >> only MemoryStick Pro storage cards are supported via TI FlashMedia
> >> MemoryStick interface.
>
> Actually... my MS slot on PCG-U3 is recognized through usb_storage.

Then consider yourself very lucky - some laptop manufacturers play nice and 
the card reader identifies itself, and works as, a USB mass storage device; 
so it works out of the box with no extra drivers needed for either the card 
reader, or the flash memory card.

The Texas Instruments chip/ card reader that Alex's work here is currently 
aimed at does not - it has a completely proprietary, so called "FlashMedia" 
chip/ interface that talks to MMC/ SD, MemoryStick (/ Pro), and SmartMedia/ 
xD cards, of which TI have refused to release any specs.

Yes, this chip doesn't even use sdhci for communicating with MMC/ SD cards - 
tifm_sd (Alex's previous work on the MMC/ SD front for this TI chip) handles 
that.

MemoryStick support is more complicated in this case than MMC/ SD, given that 
on top of TI refusing to release specs for their own FlashMedia chips, Sony 
will also not release any specs on MemoryStick cards; the same is also true 
of xD with Olympus and Fuji.

-Carlos
-- 
E-Mail: [email protected]
Web: strangeworlds.co.uk
GPG Key ID: 0x23EE722D
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux