diff -urNp ./alsa-driver-1.0.19/alsa-kernel/pci/hda/patch_realtek.c ./alsa-driver-1.0.19_mb51/alsa-kernel/pci/hda/patch_realtek.c
--- ./alsa-driver-1.0.19/alsa-kernel/pci/hda/patch_realtek.c	2009-01-19 12:08:58.000000000 +0100
+++ ./alsa-driver-1.0.19_mb51/alsa-kernel/pci/hda/patch_realtek.c	2009-05-06 16:56:57.000000000 +0200
@@ -200,6 +200,7 @@ enum {
 	ALC882_ASUS_A7M,
 	ALC885_MACPRO,
 	ALC885_MBP3,
+	ALC885_MB5,
 	ALC885_IMAC24,
 	ALC882_AUTO,
 	ALC882_MODEL_LAST,
@@ -5938,6 +5939,16 @@ static struct hda_input_mux alc882_captu
 		{ "CD", 0x4 },
 	},
 };
+
+static struct hda_input_mux mb5_capture_source = {
+	.num_items = 3,
+	.items = {
+		{ "Mic", 0x1 },
+		{ "Line", 0x2 },
+		{ "CD", 0x4 },
+	},
+};
+
 /*
  * 2ch mode
  */
@@ -6069,6 +6080,20 @@ static struct snd_kcontrol_new alc885_mb
 	HDA_CODEC_VOLUME("Mic Boost", 0x18, 0x00, HDA_INPUT),
 	{ } /* end */
 };
+
+static struct snd_kcontrol_new alc885_mb5_mixer[] = {
+	HDA_CODEC_VOLUME("Front Playback Volume", 0x0d, 0x00, HDA_OUTPUT),
+	HDA_BIND_MUTE   ("Front Playback Switch", 0x0d, 0x02, HDA_INPUT),
+	HDA_CODEC_VOLUME("Line-Out Playback Volume", 0x0c, 0x00, HDA_OUTPUT),
+	HDA_BIND_MUTE   ("Line-Out Playback Switch", 0x0c, 0x02, HDA_INPUT),
+	HDA_CODEC_VOLUME("Line Playback Volume", 0x0b, 0x02, HDA_INPUT),
+	HDA_CODEC_MUTE  ("Line Playback Switch", 0x0b, 0x02, HDA_INPUT),
+	HDA_CODEC_VOLUME("Mic Playback Volume", 0x0b, 0x01, HDA_INPUT),
+	HDA_CODEC_MUTE  ("Mic Playback Switch", 0x0b, 0x01, HDA_INPUT),
+	HDA_CODEC_VOLUME("Line Boost", 0x15, 0x00, HDA_INPUT),
+	HDA_CODEC_VOLUME("Mic Boost", 0x19, 0x00, HDA_INPUT),
+	{ } /* end */
+};
 static struct snd_kcontrol_new alc882_w2jc_mixer[] = {
 	HDA_CODEC_VOLUME("Front Playback Volume", 0x0c, 0x0, HDA_OUTPUT),
 	HDA_BIND_MUTE("Front Playback Switch", 0x0c, 2, HDA_INPUT),
@@ -6298,6 +6323,42 @@ static struct hda_verb alc882_macpro_ini
 	{ }
 };
 
+/* Macbook 5,1 */
+static struct hda_verb alc885_mb5_init_verbs[] = {
+	/* Front mixer */
+	{0x0d, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
+	{0x0d, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0)},
+	{0x0d, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(1)},
+	/* LineOut mixer */
+	{0x0c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
+	{0x0c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0)},
+	{0x0c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(1)},
+	/* Front Pin: output 0 (0x0d) */
+	{0x18, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x01},
+	{0x18, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
+	{0x18, AC_VERB_SET_CONNECT_SEL, 0x01},
+	/* HP Pin: output 0 (0x0c) */
+	{0x14, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
+	{0x14, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
+	{0x14, AC_VERB_SET_CONNECT_SEL, 0x00},
+	/* Front Mic pin: input vref at 80% */
+	{0x19, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80},
+	{0x19, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+	/* Line In pin */
+	{0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN},
+	{0x15, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+	/* Subwoofer on MacBookPro */
+       {0x1a, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
+       {0x1a, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
+       {0x1a, AC_VERB_SET_CONNECT_SEL, 0x01},
+
+	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(1)},
+	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(3)},
+	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(2)},
+	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(4)},
+	{ }
+};
+ 
 /* Macbook Pro rev3 */
 static struct hda_verb alc885_mbp3_init_verbs[] = {
 	/* Front mixer: unmute input/output amp left and right (volume = 0) */
@@ -6642,6 +6699,7 @@ static const char *alc882_models[ALC882_
 	[ALC882_ASUS_A7J]	= "asus-a7j",
 	[ALC882_ASUS_A7M]	= "asus-a7m",
 	[ALC885_MACPRO]		= "macpro",
+	[ALC885_MB5]		= "mb5",
 	[ALC885_MBP3]		= "mbp3",
 	[ALC885_IMAC24]		= "imac24",
 	[ALC882_AUTO]		= "auto",
@@ -6722,6 +6780,18 @@ static struct alc_config_preset alc882_p
 		.unsol_event = alc885_mbp3_unsol_event,
 		.init_hook = alc885_mbp3_automute,
 	},
+	[ALC885_MB5] = {
+		.mixers = { alc885_mb5_mixer },
+		.init_verbs = { alc885_mb5_init_verbs,
+				alc880_gpio1_init_verbs },
+		.num_dacs = ARRAY_SIZE(alc882_dac_nids),
+		.dac_nids = alc882_dac_nids,
+		.channel_mode = alc885_mbp_6ch_modes,
+		.num_channel_mode = ARRAY_SIZE(alc885_mbp_6ch_modes),
+		.input_mux = &mb5_capture_source,
+		.dig_out_nid = ALC882_DIGOUT_NID,
+		.dig_in_nid = ALC882_DIGIN_NID,
+	},
 	[ALC885_MACPRO] = {
 		.mixers = { alc882_macpro_mixer },
 		.init_verbs = { alc882_macpro_init_verbs },
@@ -7020,6 +7090,10 @@ static int patch_alc882(struct hda_codec
 		case 0x106b3600: /* Macbook 3.1 */
 			board_config = ALC885_MBP3;
 			break;
+		case 0x106b3f00: /* Macbook 5,1 */
+		case 0x106b4000: /* MacbookPro 5,1 */
+			board_config = ALC885_MB5;
+			break;
 		default:
 			/* ALC889A is handled better as ALC888-compatible */
 			if (codec->revision_id == 0x100101 ||