line6 needs to select SND_RAWMIDI, like many other drivers do.
ERROR: "snd_rawmidi_set_ops" [drivers/staging/line6/line6usb.ko] undefined!
ERROR: "snd_rawmidi_new" [drivers/staging/line6/line6usb.ko] undefined!
ERROR: "snd_rawmidi_transmit_peek" [drivers/staging/line6/line6usb.ko] undefined!
ERROR: "snd_rawmidi_transmit_ack" [drivers/staging/line6/line6usb.ko] undefined!
ERROR: "snd_rawmidi_receive" [drivers/staging/line6/line6usb.ko] undefined!
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
 config LINE6_USB
        tristate "Line6 USB support"
        depends on USB && SND
+       select SND_RAWMIDI
        help
          This is a driver for the guitar amp, cab, and effects modeller
          PODxt Pro by Line6 (and similar devices), supporting the