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ALSA: line6: Add hwdep interface to access the POD control messages

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We must do it this way, because e.g. POD X3 won't play any sound unless
the host listens on the bulk EP, so we cannot export it only via libusb.

The driver currently doesn't use the bulk EP messages in other way,
in future it could e.g. sense/modify volume(s).

Signed-off-by: Andrej Krutak <dev@andree.sk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Andrej Krutak
2016-09-18 20:59:32 +02:00
committed by Takashi Iwai
parent cfa769695d
commit a16039cbf1
3 changed files with 171 additions and 7 deletions
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3
include/uapi/sound/asound.h
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@@ -106,9 +106,10 @@ enum {
SNDRV_HWDEP_IFACE_FW_OXFW, /* Oxford OXFW970/971 based device */
SNDRV_HWDEP_IFACE_FW_DIGI00X, /* Digidesign Digi 002/003 family */
SNDRV_HWDEP_IFACE_FW_TASCAM, /* TASCAM FireWire series */
SNDRV_HWDEP_IFACE_LINE6, /* Line6 USB processors */
/* Don't forget to change the following: */
SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_TASCAM
SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_LINE6
};
struct snd_hwdep_info {