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greybus: interface: Fetch and expose version of interface's firmware

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The version of the currently running firmware on the module is useful
for userspace as it can be used to find if an update is available or
not. This patch fetches interface's version with a new control operation
and exposes the same in userspace.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Viresh Kumar 2015-12-28 11:59:01 +05:30 • committed by Greg Kroah-Hartman
commit d39bf704ac
6 changed files with 63 additions and 0 deletions
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