From cb0a59f541337e646fcea15628eb46866fedb8a3 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Thu, 16 Oct 2014 13:16:28 +0200 Subject: [PATCH] usb: gadget: Kconfig: enable separate compilation of uac1/uac2 functions uac1 and uac2 functions are available through the configfs interface and it should be possible to build them without building their legacy gadgets. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Felipe Balbi --- drivers/usb/gadget/Kconfig | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index c4880fc0d86e..c8a0784b8d5e 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -362,6 +362,37 @@ config USB_CONFIGFS_F_FS implemented in kernel space (for instance Ethernet, serial or mass storage) and other are implemented in user space. +config USB_CONFIGFS_F_UAC1 + boolean "Audio Class 1.0" + depends on USB_CONFIGFS + depends on SND + select USB_LIBCOMPOSITE + select SND_PCM + select USB_F_UAC1 + help + This Audio function implements 1 AudioControl interface, + 1 AudioStreaming Interface each for USB-OUT and USB-IN. + This driver requires a real Audio codec to be present + on the device. + +config USB_CONFIGFS_F_UAC2 + boolean "Audio Class 2.0" + depends on USB_CONFIGFS + depends on SND + select USB_LIBCOMPOSITE + select SND_PCM + select USB_F_UAC2 + help + This Audio function is compatible with USB Audio Class + specification 2.0. It implements 1 AudioControl interface, + 1 AudioStreaming Interface each for USB-OUT and USB-IN. + 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. + source "drivers/usb/gadget/legacy/Kconfig" endchoice