From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/Documentation/sound/designs/tracepoints.rst | 22 +++++++++++-----------
1 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/kernel/Documentation/sound/designs/tracepoints.rst b/kernel/Documentation/sound/designs/tracepoints.rst
index 78bc557..b0a7e30 100644
--- a/kernel/Documentation/sound/designs/tracepoints.rst
+++ b/kernel/Documentation/sound/designs/tracepoints.rst
@@ -34,20 +34,20 @@
interaction between applications and ALSA PCM core. Once decided, runtime of
the PCM substream keeps the parameters.
-The parameters are described in :c:type:`struct snd_pcm_hw_params`. This
+The parameters are described in struct snd_pcm_hw_params. This
structure includes several types of parameters. Applications set preferable
value to these parameters, then execute ioctl(2) with SNDRV_PCM_IOCTL_HW_REFINE
or SNDRV_PCM_IOCTL_HW_PARAMS. The former is used just for refining available
set of parameters. The latter is used for an actual decision of the parameters.
-The :c:type:`struct snd_pcm_hw_params` structure has below members:
+The struct snd_pcm_hw_params structure has below members:
``flags``
Configurable. ALSA PCM core and some drivers handle this flag to select
convenient parameters or change their behaviour.
``masks``
Configurable. This type of parameter is described in
- :c:type:`struct snd_mask` and represent mask values. As of PCM protocol
+ struct snd_mask and represent mask values. As of PCM protocol
v2.0.13, three types are defined.
- SNDRV_PCM_HW_PARAM_ACCESS
@@ -55,7 +55,7 @@
- SNDRV_PCM_HW_PARAM_SUBFORMAT
``intervals``
Configurable. This type of parameter is described in
- :c:type:`struct snd_interval` and represent values with a range. As of
+ struct snd_interval and represent values with a range. As of
PCM protocol v2.0.13, twelve types are defined.
- SNDRV_PCM_HW_PARAM_SAMPLE_BITS
@@ -78,7 +78,7 @@
are going to be changed.
``cmask``
Read-only. After returning from ioctl(2), buffer in user space for
- :c:type:`struct snd_pcm_hw_params` includes result of each operation.
+ struct snd_pcm_hw_params includes result of each operation.
This mask represents which mask/interval parameter is actually changed.
``info``
Read-only. This represents hardware/driver capabilities as bit flags
@@ -110,10 +110,10 @@
value to this parameter but some drivers intentionally set zero with
a care of hardware design or data transmission protocol.
-ALSA PCM core handles buffer of :c:type:`struct snd_pcm_hw_params` when
+ALSA PCM core handles buffer of struct snd_pcm_hw_params when
applications execute ioctl(2) with SNDRV_PCM_HW_REFINE or SNDRV_PCM_HW_PARAMS.
Parameters in the buffer are changed according to
-:c:type:`struct snd_pcm_hardware` and rules of constraints in the runtime. The
+struct snd_pcm_hardware and rules of constraints in the runtime. The
structure describes capabilities of handled hardware. The rules describes
dependencies on which a parameter is decided according to several parameters.
A rule has a callback function, and drivers can register arbitrary functions
@@ -121,17 +121,17 @@
runtime as a default.
Each driver can join in the interaction as long as it prepared for two stuffs
-in a callback of :c:type:`struct snd_pcm_ops.open`.
+in a callback of struct snd_pcm_ops.open.
1. In the callback, drivers are expected to change a member of
- :c:type:`struct snd_pcm_hardware` type in the runtime, according to
+ struct snd_pcm_hardware type in the runtime, according to
capacities of corresponding hardware.
2. In the same callback, drivers are also expected to register additional rules
of constraints into the runtime when several parameters have dependencies
due to hardware design.
The driver can refers to result of the interaction in a callback of
-:c:type:`struct snd_pcm_ops.hw_params`, however it should not change the
+struct snd_pcm_ops.hw_params, however it should not change the
content.
Tracepoints in this category are designed to trace changes of the
@@ -163,7 +163,7 @@
type, the fields represent hexadecimal dump of content of the parameter. For
parameters of interval type, the fields represent values of each member of
``empty``, ``integer``, ``openmin``, ``min``, ``max``, ``openmax`` in
-:c:type:`struct snd_interval` in this order.
+struct snd_interval in this order.
Tracepoints in drivers
======================
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