linux-kernel - Re: [PWM v6 1/3] PWM: Implement a generic PWM framework

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Message-ID: <4D732B25.2010708@metafoo.de>
Date:	Sun, 06 Mar 2011 07:35:17 +0100
From:	Lars-Peter Clausen <lars@...afoo.de>
To:	Bill Gatliff <bgat@...lgatliff.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: [PWM v6 1/3] PWM: Implement a generic PWM framework

On 03/06/2011 07:16 AM, Lars-Peter Clausen wrote:
> On 03/06/2011 05:17 AM, Bill Gatliff wrote:
>> +
>> +
>> +pwm_set_handler() -- Defines an end-of-period callback.  The indicated
>> +function will be invoked in a worker thread at the end of each PWM
>> +period, and can subsequently invoke pwm_config(), etc.  Must be used
>> +with extreme care for high-speed PWM outputs.  Set the handler
>> +function to NULL to un-set the handler.
>> +

This looks like a poor man's IRQ handler implementation. In my opinion something
like pwm_to_irq would be better suited interface.

- Lars
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