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Message-ID: <20140716032655.GB30412@kroah.com>
Date: Tue, 15 Jul 2014 20:26:55 -0700
From: Greg KH <greg@...ah.com>
To: Stephen Boyd <sboyd@...eaurora.org>
Cc: linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org
Subject: char interface to sdio, chdio.c
Hi Stephen.
I had some people ask me about a sdio userspace interface, and ran
across the chdio.c file as found in the MSM android kernel trees:
https://android.googlesource.com/kernel/msm/+/57b74303d6f033ab04be039379f6661337fb9279
Any reason why this hasn't been submitted upstream? Or has it, and was
it rejected?
Also, what userspace code uses this? Is there some android-specific
code somewhere that does a weird mix of sysfs and char control of the
hardware? And what type of SDIO devices are controlled with this?
thanks,
greg k-h
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