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Date: Thu, 18 Feb 2021 13:36:03 +0000
From: Jonathan Cameron <jic23@...nel.org>
To: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Cc: Alexandru Ardelean <alexandru.ardelean@...log.com>,
<linux-kernel@...r.kernel.org>, <linux-iio@...r.kernel.org>,
<lars@...afoo.de>, <Michael.Hennerich@...log.com>,
<nuno.sa@...log.com>, <dragos.bogdan@...log.com>
Subject: Re: [PATCH v2 1/5] iio: Documentation: update definitions for
bufferY and scan_elements
On Thu, 18 Feb 2021 12:19:48 +0000
Jonathan Cameron <Jonathan.Cameron@...wei.com> wrote:
> On Wed, 17 Feb 2021 10:34:34 +0200
> Alexandru Ardelean <alexandru.ardelean@...log.com> wrote:
>
> > Since the new change to the IIO buffer infrastructure, the buffer/ and
> > scan_elements/ directories have been merged into bufferY/ to have some
> > attributes available per-buffer.
> >
> > This change updates the ABI docs to reflect this change.
> >
> > The hwfifo attributes are not updated, as for now these should be used
> > via the legacy buffer/ directory until they are moved into core.
> >
> > Signed-off-by: Alexandru Ardelean <alexandru.ardelean@...log.com>
>
> This doesn't really have anything to do with the rest of the set - so ideally
> you'd have sent it separately.
>
> One trivial typo below, that I can fix whilst applying.
Applied with that fix.
Jonathan
>
> > ---
> > Documentation/ABI/testing/sysfs-bus-iio | 85 +++++++++++++++++++++++++
> > 1 file changed, 85 insertions(+)
> >
> > diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
> > index d957f5da5c04..f2a72d7fbacb 100644
> > --- a/Documentation/ABI/testing/sysfs-bus-iio
> > +++ b/Documentation/ABI/testing/sysfs-bus-iio
> > @@ -1118,12 +1118,16 @@ Description:
> >
> > What: /sys/bus/iio/devices/iio:deviceX/buffer/length
> > KernelVersion: 2.6.35
> > +What: /sys/bus/iio/devices/iio:deviceX/bufferY/length
> > +KernelVersion: 5.11
> > Contact: linux-iio@...r.kernel.org
> > Description:
> > Number of scans contained by the buffer.
> >
> > What: /sys/bus/iio/devices/iio:deviceX/buffer/enable
> > KernelVersion: 2.6.35
> > +What: /sys/bus/iio/devices/iio:deviceX/bufferY/enable
> > +KernelVersion: 5.11
> > Contact: linux-iio@...r.kernel.org
> > Description:
> > Actually start the buffer capture up. Will start trigger
> > @@ -1131,11 +1135,16 @@ Description:
> >
> > What: /sys/bus/iio/devices/iio:deviceX/scan_elements
> > KernelVersion: 2.6.37
> > +What: /sys/bus/iio/devices/iio:deviceX/buffeY
> bufferY
>
> I'll fix whilst applying.
>
> > +KernelVersion: 5.11
> > Contact: linux-iio@...r.kernel.org
> > Description:
> > Directory containing interfaces for elements that will be
> > captured for a single triggered sample set in the buffer.
> >
> > + Since kernel 5.11 the scan_elements attributes are merged into
> > + the bufferY directory, to be configurable per buffer.
> > +
> > What: /sys/.../iio:deviceX/scan_elements/in_accel_x_en
> > What: /sys/.../iio:deviceX/scan_elements/in_accel_y_en
> > What: /sys/.../iio:deviceX/scan_elements/in_accel_z_en
> > @@ -1164,6 +1173,34 @@ What: /sys/.../iio:deviceX/scan_elements/in_pressure_en
> > What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_en
> > What: /sys/.../iio:deviceX/scan_elements/in_proximity_en
> > KernelVersion: 2.6.37
> > +What: /sys/.../iio:deviceX/bufferY/in_accel_x_en
> > +What: /sys/.../iio:deviceX/bufferY/in_accel_y_en
> > +What: /sys/.../iio:deviceX/bufferY/in_accel_z_en
> > +What: /sys/.../iio:deviceX/bufferY/in_anglvel_x_en
> > +What: /sys/.../iio:deviceX/bufferY/in_anglvel_y_en
> > +What: /sys/.../iio:deviceX/bufferY/in_anglvel_z_en
> > +What: /sys/.../iio:deviceX/bufferY/in_magn_x_en
> > +What: /sys/.../iio:deviceX/bufferY/in_magn_y_en
> > +What: /sys/.../iio:deviceX/bufferY/in_magn_z_en
> > +What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_en
> > +What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_en
> > +What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_en
> > +What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_en
> > +What: /sys/.../iio:deviceX/bufferY/in_timestamp_en
> > +What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_en
> > +What: /sys/.../iio:deviceX/bufferY/in_voltageY_en
> > +What: /sys/.../iio:deviceX/bufferY/in_voltageY-voltageZ_en
> > +What: /sys/.../iio:deviceX/bufferY/in_voltageY_i_en
> > +What: /sys/.../iio:deviceX/bufferY/in_voltageY_q_en
> > +What: /sys/.../iio:deviceX/bufferY/in_voltage_i_en
> > +What: /sys/.../iio:deviceX/bufferY/in_voltage_q_en
> > +What: /sys/.../iio:deviceX/bufferY/in_incli_x_en
> > +What: /sys/.../iio:deviceX/bufferY/in_incli_y_en
> > +What: /sys/.../iio:deviceX/bufferY/in_pressureY_en
> > +What: /sys/.../iio:deviceX/bufferY/in_pressure_en
> > +What: /sys/.../iio:deviceX/bufferY/in_rot_quaternion_en
> > +What: /sys/.../iio:deviceX/bufferY/in_proximity_en
> > +KernelVersion: 5.11
> > Contact: linux-iio@...r.kernel.org
> > Description:
> > Scan element control for triggered data capture.
> > @@ -1185,6 +1222,23 @@ What: /sys/.../iio:deviceX/scan_elements/in_pressure_type
> > What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_type
> > What: /sys/.../iio:deviceX/scan_elements/in_proximity_type
> > KernelVersion: 2.6.37
> > +What: /sys/.../iio:deviceX/bufferY/in_accel_type
> > +What: /sys/.../iio:deviceX/bufferY/in_anglvel_type
> > +What: /sys/.../iio:deviceX/bufferY/in_magn_type
> > +What: /sys/.../iio:deviceX/bufferY/in_incli_type
> > +What: /sys/.../iio:deviceX/bufferY/in_voltageY_type
> > +What: /sys/.../iio:deviceX/bufferY/in_voltage_type
> > +What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_type
> > +What: /sys/.../iio:deviceX/bufferY/in_voltageY_i_type
> > +What: /sys/.../iio:deviceX/bufferY/in_voltageY_q_type
> > +What: /sys/.../iio:deviceX/bufferY/in_voltage_i_type
> > +What: /sys/.../iio:deviceX/bufferY/in_voltage_q_type
> > +What: /sys/.../iio:deviceX/bufferY/in_timestamp_type
> > +What: /sys/.../iio:deviceX/bufferY/in_pressureY_type
> > +What: /sys/.../iio:deviceX/bufferY/in_pressure_type
> > +What: /sys/.../iio:deviceX/bufferY/in_rot_quaternion_type
> > +What: /sys/.../iio:deviceX/bufferY/in_proximity_type
> > +KernelVersion: 5.11
> > Contact: linux-iio@...r.kernel.org
> > Description:
> > Description of the scan element data storage within the buffer
> > @@ -1241,6 +1295,33 @@ What: /sys/.../iio:deviceX/scan_elements/in_pressure_index
> > What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_index
> > What: /sys/.../iio:deviceX/scan_elements/in_proximity_index
> > KernelVersion: 2.6.37
> > +What: /sys/.../iio:deviceX/bufferY/in_voltageY_index
> > +What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_index
> > +What: /sys/.../iio:deviceX/bufferY/in_voltageY_i_index
> > +What: /sys/.../iio:deviceX/bufferY/in_voltageY_q_index
> > +What: /sys/.../iio:deviceX/bufferY/in_voltage_i_index
> > +What: /sys/.../iio:deviceX/bufferY/in_voltage_q_index
> > +What: /sys/.../iio:deviceX/bufferY/in_accel_x_index
> > +What: /sys/.../iio:deviceX/bufferY/in_accel_y_index
> > +What: /sys/.../iio:deviceX/bufferY/in_accel_z_index
> > +What: /sys/.../iio:deviceX/bufferY/in_anglvel_x_index
> > +What: /sys/.../iio:deviceX/bufferY/in_anglvel_y_index
> > +What: /sys/.../iio:deviceX/bufferY/in_anglvel_z_index
> > +What: /sys/.../iio:deviceX/bufferY/in_magn_x_index
> > +What: /sys/.../iio:deviceX/bufferY/in_magn_y_index
> > +What: /sys/.../iio:deviceX/bufferY/in_magn_z_index
> > +What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_index
> > +What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_index
> > +What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_index
> > +What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_index
> > +What: /sys/.../iio:deviceX/bufferY/in_incli_x_index
> > +What: /sys/.../iio:deviceX/bufferY/in_incli_y_index
> > +What: /sys/.../iio:deviceX/bufferY/in_timestamp_index
> > +What: /sys/.../iio:deviceX/bufferY/in_pressureY_index
> > +What: /sys/.../iio:deviceX/bufferY/in_pressure_index
> > +What: /sys/.../iio:deviceX/bufferY/in_rot_quaternion_index
> > +What: /sys/.../iio:deviceX/bufferY/in_proximity_index
> > +KernelVersion: 5.11
> > Contact: linux-iio@...r.kernel.org
> > Description:
> > A single positive integer specifying the position of this
> > @@ -1455,6 +1536,8 @@ Description:
> >
> > What: /sys/bus/iio/devices/iio:deviceX/buffer/watermark
> > KernelVersion: 4.2
> > +What: /sys/bus/iio/devices/iio:deviceX/bufferY/watermark
> > +KernelVersion: 5.11
> > Contact: linux-iio@...r.kernel.org
> > Description:
> > A single positive integer specifying the maximum number of scan
> > @@ -1473,6 +1556,8 @@ Description:
> >
> > What: /sys/bus/iio/devices/iio:deviceX/buffer/data_available
> > KernelVersion: 4.16
> > +What: /sys/bus/iio/devices/iio:deviceX/bufferY/data_available
> > +KernelVersion: 5.11
> > Contact: linux-iio@...r.kernel.org
> > Description:
> > A read-only value indicating the bytes of data available in the
>
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