diff options
Diffstat (limited to 'drivers/usb/gadget/Kconfig')
| -rw-r--r-- | drivers/usb/gadget/Kconfig | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index c164d6b788c3..35cc641d9f31 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -41,7 +41,7 @@ menuconfig USB_GADGET don't have this kind of hardware (except maybe inside Linux PDAs). For more information, see <http://www.linux-usb.org/gadget> and - the kernel DocBook documentation for this API. + the kernel documentation for this API. if USB_GADGET @@ -158,6 +158,9 @@ config USB_U_SERIAL config USB_U_ETHER tristate +config USB_U_AUDIO + tristate + config USB_F_SERIAL tristate @@ -191,6 +194,9 @@ config USB_F_FS config USB_F_UAC1 tristate +config USB_F_UAC1_LEGACY + tristate + config USB_F_UAC2 tristate @@ -368,12 +374,30 @@ config USB_CONFIGFS_F_UAC1 depends on SND select USB_LIBCOMPOSITE select SND_PCM + select USB_U_AUDIO 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. + 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. + +config USB_CONFIGFS_F_UAC1_LEGACY + bool "Audio Class 1.0 (legacy implementation)" + depends on USB_CONFIGFS + depends on SND + select USB_LIBCOMPOSITE + select SND_PCM + select USB_F_UAC1_LEGACY + help + This Audio function implements 1 AudioControl interface, + 1 AudioStreaming Interface each for USB-OUT and USB-IN. + This is a legacy driver and requires a real Audio codec + to be present on the device. config USB_CONFIGFS_F_UAC2 bool "Audio Class 2.0" @@ -381,6 +405,7 @@ config USB_CONFIGFS_F_UAC2 depends on SND select USB_LIBCOMPOSITE select SND_PCM + select USB_U_AUDIO select USB_F_UAC2 help This Audio function is compatible with USB Audio Class |