linux-kernel - [PATCH v5 2/3] Documentation/ABI/testing: Add documentation for AD5766 new ABI

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20210108183739.27634-2-cristian.pop@analog.com>
Date:   Fri, 8 Jan 2021 20:37:38 +0200
From:   Cristian Pop <cristian.pop@...log.com>
To:     <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <jic23@...nel.org>, <devicetree@...r.kernel.org>,
        Cristian Pop <cristian.pop@...log.com>
Subject: [PATCH v5 2/3] Documentation/ABI/testing: Add documentation for AD5766 new ABI

New interface is proposed for dither functionality. This future allows
composing  an external signals to the selected output channel.
The dither signal can be turned on/off, scaled, inverted, or it can be
selected from different sources.

Signed-off-by: Cristian Pop <cristian.pop@...log.com>
---
Changelog v5:                                                              
        - Rename property to: "in_voltageY_dither_enable"                  
        - Change scale values to: "1 0.75 0.5 0.25"                        
        - Specify KernelVersion
 .../ABI/testing/sysfs-bus-iio-dac-ad5766      | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-dac-ad5766

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-dac-ad5766 b/Documentation/ABI/testing/sysfs-bus-iio-dac-ad5766
new file mode 100644
index 000000000000..6e5e383b2c53
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-dac-ad5766
@@ -0,0 +1,31 @@
+What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_dither_ennable
+KernelVersion:	5.12
+Contact:	linux-iio@...r.kernel.org
+Description:
+		Dither enable. Write 1 to enable dither or 0 to disable it.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_dither_invert
+KernelVersion:	5.12
+Contact:	linux-iio@...r.kernel.org
+Description:
+		Inverts the dither applied to the selected DAC channel. Dither is not
+		inverted by default. Write "1" to invert dither.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_dither_scale_available
+KernelVersion:	5.12
+Contact:	linux-iio@...r.kernel.org
+Description:
+		Returns possible scalings available for the current channel.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_dither_scale
+KernelVersion:	5.12
+Contact:	linux-iio@...r.kernel.org
+Description:
+		Scales the dither before it is applied to the selected channel.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_dither_source
+KernelVersion:	5.12
+Contact:	linux-iio@...r.kernel.org
+Description:
+		Selects dither source applied to the selected channel. Write "0" to
+		select N0 source, write "1" to select N1 source.
-- 
2.17.1