linux-kernel - Re: [PATCH 1/2] power: bq27xxx_battery: add configurable poll

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Date:   Mon, 19 Sep 2016 21:46:03 +0200
From:   Sebastian Reichel <sre@...nel.org>
To:     Matt Ranostay <mranostay@...il.com>
Cc:     "Andrew F . Davis" <afd@...com>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Matt Ranostay <matt@...ostay.consulting>
Subject: Re: [PATCH 1/2] power: bq27xxx_battery: add configurable
 poll_interval by sysfs

Hi,

On Fri, Sep 16, 2016 at 08:42:54PM -0700, Matt Ranostay wrote:
> Allow the poll_interval to be runtime configurable via an sysfs
> entry.  This is needed for udev control of the poll interval.
> 
> Signed-off-by: Matt Ranostay <matt@...ostay.consulting>
> ---
>  drivers/power/supply/bq27xxx_battery.c | 48 +++++++++++++++++++++++++++++++++-
>  1 file changed, 47 insertions(+), 1 deletion(-)

New sysfs attributes should be documented in Documentation/ABI.

Also I'm not too keen to add this, as there is already the sysfs
entry for the module parameter. I don't see any reason why udev
should not be able to change that value, so fix udev instead of
duplicating functionality in the kernel.

-- Sebastian

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