linux-kernel - Re: [PATCH 2/2] MEMSTICK: Add driver for Ricoh R5C592 Card reader.

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Message-ID: <815343.24396.qm@web37602.mail.mud.yahoo.com>
Date:	Sat, 7 Aug 2010 06:12:49 -0700 (PDT)
From:	Alex Dubov <oakad@...oo.com>
To:	Maxim Levitsky <maximlevitsky@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] MEMSTICK: Add driver for Ricoh R5C592 Card reader.

> > > 
> > > Btw, I want to add a callback from driver to card
> driver to
> > > be able to
> > > reset card in case of error (windows driver does
> that in
> > > case of any
> > > error)
> > > 
> > > I would use most of the mspro_block_resume for
> the
> > > implementation for
> > > mspro.
> > > 
> > > Any objections, suggestions?
> > > 
> > 
> > Just toggle a power on it. Power off/power on will do
> the full reset of
> > the controller and the media. You don't have to
> reinitialize it, as you
> > are sure that it's the same stick.
> 
> Yea, but after such reboot, the device will be in serial
> mode. So, I
> will need to send switch TPC to device. My driver doesn't
> know how to do
> that...., so it would be nice to have callback to the
> core.
> 

Lets ask a different question: why do you think this
particular functionality is needed at all? Have you encountered any
problems which require it (I haven't, btw)?

Windows drivers do a lot of things, but it does not mean all of them must
be copied literally.

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