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@kernel.org --- 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.

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