ALSA: move line6 usb driver into sound/usb

Promote line6 driver from staging to sound/usb/line6 directory, and
maintain through sound subsystem tree.

This commit just moves the code and adapts Makefile / Kconfig.
The further renames and misc cleanups will follow.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 38 insertions, 0 deletions

diff --git a/sound/usb/line6/Kconfig b/sound/usb/line6/Kconfig
new file mode 100644
index 000000000000..4f1219b4c692
--- /dev/null
+++ b/sound/usb/line6/Kconfig
@@ -0,0 +1,38 @@
+menuconfig LINE6_USB
+	tristate "Line6 USB support"
+	depends on USB && SND
+	select SND_RAWMIDI
+	select SND_PCM
+	help
+	  This is a driver for the guitar amp, cab, and effects modeller
+	  PODxt Pro by Line6 (and similar devices), supporting the
+	  following features:
+	    * Reading/writing individual parameters
+	    * Reading/writing complete channel, effects setup, and amp
+	      setup data
+	    * Channel switching
+	    * Virtual MIDI interface
+	    * Tuner access
+	    * Playback/capture/mixer device for any ALSA-compatible PCM
+	      audio application
+	    * Signal routing (record clean/processed guitar signal,
+	      re-amping)
+
+	  Preliminary support for the Variax Workbench and TonePort
+	  devices is included.
+
+if LINE6_USB
+
+config LINE6_USB_IMPULSE_RESPONSE
+	bool "measure impulse response"
+	default n
+	help
+	  Say Y here to add code to measure the impulse response of a Line6
+	  device. This is more accurate than user-space methods since it
+	  bypasses any PCM data buffering (e.g., by ALSA or jack). This is
+	  useful for assessing the performance of new devices, but is not
+	  required for normal operation.
+
+	  If unsure, say N.
+
+endif # LINE6_USB