From mboxrd@z Thu Jan 1 00:00:00 1970 From: sergei.shtylyov@cogentembedded.com (Sergei Shtylyov) Date: Wed, 05 Feb 2014 23:23:25 +0300 Subject: [PATCH v3 0/6] IIO pulse capture support for TI ECAP In-Reply-To: <1391626901-31684-1-git-send-email-mporter@linaro.org> References: <1391626901-31684-1-git-send-email-mporter@linaro.org> Message-ID: <52F29DBD.9050305@cogentembedded.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hello. On 02/05/2014 10:01 PM, Matt Porter wrote: [...] > This series adds support for PWM capture devices within IIO and > adds a TI ECAP IIO driver. > PWM capture devices are supported using a new IIO "pulse" channel type. > The IIO ECAP driver implements interrupt driven triggered buffer capture > only as raw sample reads are not applicable to this hardware. > Initially, the driver supports a single pulse width measurement with > configurable polarity. The ECAP hardware can support measurement of a > complete period and duty cycle but this is not yet implemented. How about pulse counting? I have the hardware that can also count pulses in addition to measuring the periods, so I'm interested in this work (initially I supported it in driver/misc/ but it got turned down for iio). WBR, Sergei