Commit d464b7db authored by Christian Gromm's avatar Christian Gromm Committed by Greg Kroah-Hartman
Browse files

staging: most: Documentation: add information to driver_usage file 



This patch updates driver_usage.txt file to reflect the latest changes
that this patch set introduces.

Signed-off-by: default avatarChristian Gromm <christian.gromm@microchip.com>
Reviewed-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e6861b91

drivers/staging/most/Documentation/driver_usage.txt

+13 −3
Original line number Diff line number Diff line
@@ -142,8 +142,9 @@ Cdev component example: 


Sound component example:



The sound component needs an additional parameter to determine the audio

resolution that is going to be used. The following formats are available:

The sound component needs additional parameters to determine the audio

resolution that is going to be used and to trigger the registration of a

sound card with ALSA. The following audio formats are available:



	- "1x8" (Mono)

	- "2x16" (16-bit stereo)
@@ -151,9 +152,18 @@ resolution that is going to be used. The following formats are available: 
	- "2x32" (32-bit stereo)

	- "6x16" (16-bit surround 5.1)



        $ echo "mdev0:ep_81:sound:most51_playback.6x16" >$(DRV_DIR)/add_link

To make the sound module create a sound card and register it with ALSA the

string "create" needs to be attached to the module parameter section of the

configuration string. To create a sound card with with two playback devices

(linked to channel ep01 and ep02) and one capture device (linked to channel

ep83) the following is written to the add_link file:



        $ echo "mdev0:ep01:sound:most51_playback.6x16" >$(DRV_DIR)/add_link

        $ echo "mdev0:ep02:sound:most_playback.2x16" >$(DRV_DIR)/add_link

        $ echo "mdev0:ep83:sound:most_capture.2x16.create" >$(DRV_DIR)/add_link



The link names (most51_playback, most_playback and most_capture) will

become the names of the PCM devices of the sound card.



		Section 2.3 USB Padding

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