* Memory stick reader Ricoh R5C592 supported?
@ 2007-03-02 9:23 Werner LEMBERG
2007-03-02 9:41 ` Pierre Ossman
0 siblings, 1 reply; 6+ messages in thread
From: Werner LEMBERG @ 2007-03-02 9:23 UTC (permalink / raw)
To: linux-kernel; +Cc: Pierre Ossman
Folks,
my Dell Inspiron 6400 laptop has both a Ricoh R5C822 host adapter (for
SD, MMC, etc.) and a Ricoh R5C592 host adapter for memory sticks.
While the former works just fine, it seems to me that the latter
hasn't any support. Indeed, inserting a Sony MSA-128A memory stick
causes no reaction whatsoever. Searching with google, I haven't found
anything related to this chip; looking into the kernel source code
wasn't successful either.
Can you please shed some light on the current situation? I'm using
kernel 2.6.20.
Werner
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: Memory stick reader Ricoh R5C592 supported?
2007-03-02 9:23 Memory stick reader Ricoh R5C592 supported? Werner LEMBERG
@ 2007-03-02 9:41 ` Pierre Ossman
2007-03-02 9:58 ` Jiri Slaby
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Pierre Ossman @ 2007-03-02 9:41 UTC (permalink / raw)
To: Werner LEMBERG; +Cc: linux-kernel
Werner LEMBERG wrote:
> Folks,
>
>
> my Dell Inspiron 6400 laptop has both a Ricoh R5C822 host adapter (for
> SD, MMC, etc.) and a Ricoh R5C592 host adapter for memory sticks.
>
> While the former works just fine, it seems to me that the latter
> hasn't any support. Indeed, inserting a Sony MSA-128A memory stick
> causes no reaction whatsoever. Searching with google, I haven't found
> anything related to this chip; looking into the kernel source code
> wasn't successful either.
>
> Can you please shed some light on the current situation? I'm using
> kernel 2.6.20.
>
Memory stick is completely unsupported. We haven't got any specs for neither the
the host controllers or the protocol. So I would guess it would be quite some
time before memorystick is supported directly by Linux.
Rgds
--
-- Pierre Ossman
Linux kernel, MMC maintainer http://www.kernel.org
PulseAudio, core developer http://pulseaudio.org
rdesktop, core developer http://www.rdesktop.org
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: Memory stick reader Ricoh R5C592 supported?
2007-03-02 9:41 ` Pierre Ossman
@ 2007-03-02 9:58 ` Jiri Slaby
2007-03-02 12:11 ` Matthew Garrett
2007-03-02 12:21 ` Alan
2 siblings, 0 replies; 6+ messages in thread
From: Jiri Slaby @ 2007-03-02 9:58 UTC (permalink / raw)
To: Pierre Ossman; +Cc: Werner LEMBERG, linux-kernel
Pierre Ossman napsal(a):
> Werner LEMBERG wrote:
>> Folks,
>>
>>
>> my Dell Inspiron 6400 laptop has both a Ricoh R5C822 host adapter (for
>> SD, MMC, etc.) and a Ricoh R5C592 host adapter for memory sticks.
>>
>> While the former works just fine, it seems to me that the latter
>> hasn't any support. Indeed, inserting a Sony MSA-128A memory stick
>> causes no reaction whatsoever. Searching with google, I haven't found
>> anything related to this chip; looking into the kernel source code
>> wasn't successful either.
>>
>> Can you please shed some light on the current situation? I'm using
>> kernel 2.6.20.
>>
>
> Memory stick is completely unsupported. We haven't got any specs for neither the
> the host controllers or the protocol. So I would guess it would be quite some
> time before memorystick is supported directly by Linux.
There is an experimental out-of-the-tree ricoh driver. I don't know if your
reader is supported, you can give it a try and report back. Make sure, you have
backed your data up.
http://marc.theaimsgroup.com/?l=linux-kernel&m=117123096427193&w=2
regards,
--
http://www.fi.muni.cz/~xslaby/ Jiri Slaby
faculty of informatics, masaryk university, brno, cz
e-mail: jirislaby gmail com, gpg pubkey fingerprint:
B674 9967 0407 CE62 ACC8 22A0 32CC 55C3 39D4 7A7E
Hnus <hnus@fi.muni.cz> is an alias for /dev/null
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Memory stick reader Ricoh R5C592 supported?
2007-03-02 9:41 ` Pierre Ossman
2007-03-02 9:58 ` Jiri Slaby
@ 2007-03-02 12:11 ` Matthew Garrett
2007-03-02 12:21 ` Alan
2 siblings, 0 replies; 6+ messages in thread
From: Matthew Garrett @ 2007-03-02 12:11 UTC (permalink / raw)
To: Pierre Ossman; +Cc: Werner LEMBERG, linux-kernel
On Fri, Mar 02, 2007 at 10:41:18AM +0100, Pierre Ossman wrote:
> Memory stick is completely unsupported. We haven't got any specs for neither the
> the host controllers or the protocol. So I would guess it would be quite some
> time before memorystick is supported directly by Linux.
There are MS drivers for some Winbond hardware at
http://zeniv.linux.org.uk/~winbond/ - the combination of those and the
publically available docs from the memory stick site seems like enough
to get a protocol driver. The tifm driver also appears to be growing
memory stick support, and it looks like it's been implemented in a
fairly generalisable way.
--
Matthew Garrett | mjg59@srcf.ucam.org
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Memory stick reader Ricoh R5C592 supported?
2007-03-02 9:41 ` Pierre Ossman
2007-03-02 9:58 ` Jiri Slaby
2007-03-02 12:11 ` Matthew Garrett
@ 2007-03-02 12:21 ` Alan
2007-03-02 12:15 ` Matthew Garrett
2 siblings, 1 reply; 6+ messages in thread
From: Alan @ 2007-03-02 12:21 UTC (permalink / raw)
To: Pierre Ossman; +Cc: Werner LEMBERG, linux-kernel
> Memory stick is completely unsupported. We haven't got any specs for neither the
> the host controllers or the protocol. So I would guess it would be quite some
> time before memorystick is supported directly by Linux.
Don't hold your breath either. The reverse engineering work done a long
time ago on some of the memory sticks suggests the "security" (DRM)
features are actually done in software by the driver so I doubt we'll see
specs soon.
Alan
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Memory stick reader Ricoh R5C592 supported?
2007-03-02 12:21 ` Alan
@ 2007-03-02 12:15 ` Matthew Garrett
0 siblings, 0 replies; 6+ messages in thread
From: Matthew Garrett @ 2007-03-02 12:15 UTC (permalink / raw)
To: Alan; +Cc: Pierre Ossman, Werner LEMBERG, linux-kernel
On Fri, Mar 02, 2007 at 12:21:30PM +0000, Alan wrote:
> Don't hold your breath either. The reverse engineering work done a long
> time ago on some of the memory sticks suggests the "security" (DRM)
> features are actually done in software by the driver so I doubt we'll see
> specs soon.
DRM on memory stick appears to be about as widely used as the secure
part of SD, so I don't think that's intrinsically a problem.
--
Matthew Garrett | mjg59@srcf.ucam.org
^ permalink raw reply [flat|nested] 6+ messages in thread
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2007-03-02 9:23 Memory stick reader Ricoh R5C592 supported? Werner LEMBERG
2007-03-02 9:41 ` Pierre Ossman
2007-03-02 9:58 ` Jiri Slaby
2007-03-02 12:11 ` Matthew Garrett
2007-03-02 12:21 ` Alan
2007-03-02 12:15 ` Matthew Garrett
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