+#define AC97_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .info = snd_ac97_info_volsw, \
+ .get = snd_ac97_get_volsw, .put = snd_ac97_put_volsw, \
+ .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) | ((mask) << 16) | ((invert) << 24) }
+#define AC97_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xtexts) \
+{ .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
+ .mask = xmask, .texts = xtexts }
+#define AC97_ENUM_SINGLE(xreg, xshift, xmask, xtexts) \
+ AC97_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xtexts)
+#define AC97_ENUM(xname, xenum) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_info_enum_double, \
+ .get = snd_ac97_get_enum_double, .put = snd_ac97_put_enum_double, \
+ .private_value = (unsigned long)&xenum }