On Tue, May 31, 2016 at 11:05:57PM +0200, johannes at johannesthoma.com wrote:

From: Johannes Thoma <redacted>

The HC-SR04 is an ultrasonic distance sensor attached to two GPIO
pins. The driver based on Industrial I/O (iio) subsystem and is
controlled via configfs and sysfs. It supports an (in theory) unlimited
number of HC-SR04 devices.

Datasheet to the device can be found at:

http://www.micropik.com/PDF/HCSR04.pdf
Signed-off-by: Johannes Thoma <redacted>
---
 MAINTAINERS                               |   7 +
 drivers/iio/Kconfig                       |   1 +
 drivers/iio/Makefile                      |   1 +
 drivers/iio/ultrasonic-distance/Kconfig   |  16 ++
 drivers/iio/ultrasonic-distance/Makefile  |   6 +
 drivers/iio/ultrasonic-distance/hc-sr04.c | 460 ++++++++++++++++++++++++++++++
 6 files changed, 491 insertions(+)
 create mode 100644 drivers/iio/ultrasonic-distance/Kconfig
 create mode 100644 drivers/iio/ultrasonic-distance/Makefile
 create mode 100644 drivers/iio/ultrasonic-distance/hc-sr04.c

Hint, use scripts/get_maintainer.pl to find the correct mailing list and
developers to send this patch to, in order to ensure the correct people
who can apply it, receive it.

thanks,

greg k-h