From: Sheetal <sheetal.tigadoli@gmail.com>
To: Muni Sekhar <munisekharrms@gmail.com>,
linux-mmc <linux-mmc@vger.kernel.org>
Subject: Re: mmc_test.ko usage
Date: Mon, 12 Oct 2015 11:40:45 +0530 [thread overview]
Message-ID: <561B4EE5.10006@gmail.com> (raw)
In-Reply-To: <CAHhAz+iGUga6o+zatkew8uqBi+aJpHnpetGx393Fc_sC4YQhxA@mail.gmail.com>
On Monday 12 October 2015 11:25 AM, Muni Sekhar wrote:
> Hi ,
>
>
> I tried to use the MMC host test driver (mmc_test.ko) for testing SD
> Host controller hardware. When I load the driver I noticed that
> mmc_test_probe() not getting called.
>
> Could anyone specify the exact usage of mmc_test.ko?
>
Hello Muni Sekhar,
I think the following might help you in using MMC_TEST.KO Module
0. insmod mmc_test.ko
1. unbind the mmc block driver
echo mmc0:b368 > /sys/bus/mmc/drivers/mmcblk/unbind
2. bind the mmc_test driver
echo mmc0:b368 > /sys/bus/mmc/drivers/mmc_test/bind
3. mount the debugfs if you don't mount for debugfs
mount -t debugfs none /sys/kernel/debug
4. After mount, you can see the "/sys/kernel/debug/mmc0/mmc0:b368/test"
5. echo "test number" > /sys/kernel/debug/mmc0/mmc0\:b368/test
you can see the "test number" using the "cat /sys/kernel/debug/mmc0/mmc0\:b368/testlist"
The above has been copied straigtly from thelink <http://forum.kernelnewbies.org/read.php?12,1991,116405#msg-116405>
next prev parent reply other threads:[~2015-10-12 6:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-12 5:55 mmc_test.ko usage Muni Sekhar
2015-10-12 6:10 ` Sheetal [this message]
2015-10-12 6:41 ` Muni Sekhar
2015-10-12 7:28 ` Sheetal
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