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authorJames Gruber <jimmyjgruber@gmail.com>2023-09-14 15:27:46 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-10-05 09:35:43 +0200
commitde2eb28cdb76df9ce7587e1c6552b169069af4bb (patch)
tree1265bc4e1592071efb2410fd4be16cfd64292f40 /Documentation
parentaf313201946a7e64f6985711136ef02f9113a8fc (diff)
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usb: gadget: f_uac2: allow changing terminal types through configfs
Add "c_terminal_type" and "p_terminal_type" configfs entries in order to allow the user to change the capture and playback terminal type codes. These fields affect the type of audio device that Windows detects, so being able to modify this is useful when it would be advantageous for a gadget to be detected as something other than a generic speaker/microphone. The fields default to microphone for the capture type field and speaker for the playback type field as was the case before. Signed-off-by: James Gruber <jimmyjgruber@gmail.com> Link: https://lore.kernel.org/r/20230914222746.155126-1-jimmyjgruber@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/configfs-usb-gadget-uac22
-rw-r--r--Documentation/usb/gadget-testing.rst2
2 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uac2 b/Documentation/ABI/testing/configfs-usb-gadget-uac2
index 3371c39f651d..a2bf4fd82a5b 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-uac2
+++ b/Documentation/ABI/testing/configfs-usb-gadget-uac2
@@ -35,4 +35,6 @@ Description:
req_number the number of pre-allocated requests
for both capture and playback
function_name name of the interface
+ c_terminal_type code of the capture terminal type
+ p_terminal_type code of the playback terminal type
===================== =======================================
diff --git a/Documentation/usb/gadget-testing.rst b/Documentation/usb/gadget-testing.rst
index 394cd226bfae..29072c166d23 100644
--- a/Documentation/usb/gadget-testing.rst
+++ b/Documentation/usb/gadget-testing.rst
@@ -755,6 +755,8 @@ The uac2 function provides these attributes in its function directory:
req_number the number of pre-allocated request for both capture
and playback
function_name name of the interface
+ c_terminal_type code of the capture terminal type
+ p_terminal_type code of the playback terminal type
================ ====================================================
The attributes have sane default values.