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-rw-r--r--Documentation/usb/gadget-testing.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/usb/gadget-testing.txt b/Documentation/usb/gadget-testing.txt
index 581960574889..fb0cc4df1765 100644
--- a/Documentation/usb/gadget-testing.txt
+++ b/Documentation/usb/gadget-testing.txt
@@ -632,6 +632,8 @@ The uac2 function provides these attributes in its function directory:
p_chmask - playback channel mask
p_srate - playback sampling rate
p_ssize - playback sample size (bytes)
+ req_number - the number of pre-allocated request for both capture
+ and playback
The attributes have sane default values.