1 files changed, 19 insertions, 6 deletions

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 7ecb68a67411..1623b5204da4 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -599,16 +599,29 @@ config USB_AUDIO
         depends on SND
         select SND_PCM
         help
-          Gadget Audio is compatible with USB Audio Class specification 1.0.
-          It will include at least one AudioControl interface, zero or more
-          AudioStream interface and zero or more MIDIStream interface.
-
-          Gadget Audio will use on-board ALSA (CONFIG_SND) audio card to
-          playback or capture audio stream.
+          This Gadget Audio driver is compatible with USB Audio Class
+          specification 2.0. It implements 1 AudioControl interface,
+          1 AudioStreaming Interface each for USB-OUT and USB-IN.
+          Number of channels, sample rate and sample size can be
+          specified as module parameters.
+          This driver doesn't expect any real Audio codec to be present
+          on the device - the audio streams are simply sinked to and
+          sourced from a virtual ALSA sound card created. The user-space
+          application may choose to do whatever it wants with the data
+          received from the USB Host and choose to provide whatever it
+          wants as audio data to the USB Host.
 
           Say "y" to link the driver statically, or "m" to build a
           dynamically linked module called "g_audio".
 
+config GADGET_UAC1
+        bool "UAC 1.0 (Legacy)"
+        depends on USB_AUDIO
+        help
+          If you instead want older UAC Spec-1.0 driver that also has audio
+          paths hardwired to the Audio codec chip on-board and doesn't work
+          without one.
+
 config USB_ETH
         tristate "Ethernet Gadget (with CDC Ethernet support)"
         depends on NET