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From: Pratyush Anand <panand@redhat.com>
To: linux-watchdog@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, dyoung@redhat.com
Subject: Query: consistent method for identifying watchdog driver
Date: Mon, 10 Aug 2015 11:40:17 +0530	[thread overview]
Message-ID: <20150810061017.GC4523@dhcppc13.redhat.com> (raw)

Hi Watchdog Folks,

I need some way to identify the driver/module for a given watchdog node say
/dev/watchdog0.

Documentation/watchdog/watchdog-api.txt says:
identity                a string identifying the watchdog driver

However, all the watchdog driver does not define identity as DRV_NAME.

Otherway, could be to look for /sys/class/watchdog/watchdog0/device/modalias.

However, for all wd devices(say drivers/misc/mei/wd.c) we do not see an entry
for /sys/class/watchdog/watchdog0/device/. Reason is that parent of
watchdog_device has not been assigned for such devices. I will send fixup for
all such watchdog devices anyway. But, I wanted to know that what could be the
best way to identify the driver.

Thanks for your help.

~Pratyush

                 reply	other threads:[~2015-08-10  6:10 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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