[PATCH v4 39/52] docs: writing-an-alsa-driver.rst: fix some bad c:func: markups

From: Mauro Carvalho Chehab
Date: Wed Sep 30 2020 - 09:27:22 EST


Some such markups are invalid, as reported by Sphinx:

./Documentation/sound/kernel-api/writing-an-alsa-driver.rst:3317: WARNING: Unparseable C cross-reference: 'snd_rawmidi_transmit*'
Invalid C declaration: Expected end of definition. [error at 20]
snd_rawmidi_transmit*
--------------------^
./Documentation/sound/kernel-api/writing-an-alsa-driver.rst:3917: WARNING: Unparseable C cross-reference: 'copy_from/to_user'
Invalid C declaration: Expected end of definition. [error at 9]
copy_from/to_user
---------^

The first case seems to be better replaced by a literal.

For the second one, let's generate cross-references, by
spliting it in two.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
---
Documentation/sound/kernel-api/writing-an-alsa-driver.rst | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/Documentation/sound/kernel-api/writing-an-alsa-driver.rst b/Documentation/sound/kernel-api/writing-an-alsa-driver.rst
index 85d6e9c643ef..73bbd59afc33 100644
--- a/Documentation/sound/kernel-api/writing-an-alsa-driver.rst
+++ b/Documentation/sound/kernel-api/writing-an-alsa-driver.rst
@@ -3315,8 +3315,7 @@ data and removes them from the buffer at once:
}

If you know beforehand how many bytes you can accept, you can use a
-buffer size greater than one with the
-:c:func:`snd_rawmidi_transmit\*()` functions.
+buffer size greater than one with the ``snd_rawmidi_transmit*()`` functions.

The ``trigger`` callback must not sleep. If the hardware FIFO is full
before the substream buffer has been emptied, you have to continue
@@ -3916,7 +3915,7 @@ the maximum size of the proc file access.

The read/write callbacks of raw mode are more direct than the text mode.
You need to use a low-level I/O functions such as
-:c:func:`copy_from/to_user()` to transfer the data.
+:c:func:`copy_from_user()` and :c:func:`copy_to_user()` to transfer the data.

::

--
2.26.2