I've had the same problem with kernels later than 3.8. On 3.8, I switched to
using ti,da830-evm-audio (davinci-evm.c, I think). My DTS (for both types of
sound card) call for a 12MHz McASP master clock, but in 4.x kernels, I would
actually see a 24MHz signal come off the master clock, and I think that's what
led to the underflow.
FWIW, here's my DTS (for 3.8):
https://github.com/JetForMe/podtique/blob/v1/bbb/cape/Podtique1/BB-BONE-AUDI-03-00A0.dts
I would love to get this to work in 4.1.x
> On Oct 18, 2015, at 07:46 , [email protected] wrote:
>
> Hi,
>
> I have the same problem.
> Which kernel are you using?
> I'm currently working with the offical BeagleBone 4.1 kernel.
> The only useful information I found is this post:
> http://mailman.alsa-project.org/pipermail/alsa-devel/2014-November/083797.html
> "An underrun (playback) event occurs when the serializer transfer
> data from the XRBUF buffer to the XRSR shift register, but the
> XRBUF hasn't been filled. Similarly, the overrun (capture) event
> occurs when data from the XRSR shift register is transferred to
> the XRBUF but it hasn't been read yet."
>
> So I think there is a problem with the mcasp interface and ASoC.
>
> Am Montag, 10. August 2015 14:25:32 UTC+2 schrieb Shadi Abdu-Rahman:
> Hi all,
>
> I'm having trouble using an audio codec board with a custom device tree
> overlay (see below) with the Beaglebone Black. When exporting the overlay,
> the codecs seem to register fine:
>
> dmesg
> [ 1375.144463] bone_capemgr bone_capemgr: part_number 'BB-BONE-XA-SK-AU',
> version 'N/A'
> [ 1375.152305] bone_capemgr bone_capemgr: slot #4: override
> [ 1375.157799] bone_capemgr bone_capemgr: Using override eeprom data at slot 4
> [ 1375.164864] bone_capemgr bone_capemgr: slot #4: 'Override Board
> Name,00A0,Override Manuf,BB-BONE-XA-SK-AU'
> [ 1375.206351] bone_capemgr bone_capemgr: slot #4: dtbo
> 'BB-BONE-XA-SK-AU-00A0.dtbo' loaded; overlay id #0
> [ 1375.464260] cs4270 2-0048: found device at i2c address 48
> [ 1375.469699] cs4270 2-0048: hardware revision 3
> [ 1375.485782] cs4270 2-0049: found device at i2c address 49
> [ 1375.491222] cs4270 2-0049: hardware revision 3
> [ 1375.504744] (NULL device *): Setting gpio_int_masterclk_enable = 0
> [ 1375.513334] asoc-simple-card ocp:sound: cs4270-hifi <-> 48038000.mcasp
> mapping ok
> [ 1375.521095] (NULL device *): Setting gpio_int_masterclk_enable = 0
> [ 1375.529893] asoc-simple-card ocp:sound: cs4270-hifi <-> 48038000.mcasp
> mapping ok
>
> aplay -l
> **** List of PLAYBACK Hardware Devices ****
> card 0: XMOSAudioSlice [XMOS-Audio-Slice], device 0:
> davinci-mcasp.0-cs4270-hifi-a cs4270-hifi-0 []
> Subdevices: 1/1
> Subdevice #0: subdevice #0
> card 0: XMOSAudioSlice [XMOS-Audio-Slice], device 1:
> davinci-mcasp.0-cs4270-hifi-b cs4270-hifi-1 []
> Subdevices: 1/1
> Subdevice #0: subdevice #0
>
> lsmod:
> snd_soc_davinci_mcasp 14391 2
> snd_soc_simple_card 8156 0
> snd_soc_edma 1150 1 snd_soc_davinci_mcasp
> snd_soc_cs4270 6875 2
> snd_soc_omap 2573 1 snd_soc_davinci_mcasp
> snd_soc_core 156881 5
> snd_soc_davinci_mcasp,snd_soc_edma,snd_soc_omap,snd_soc_simple_card,snd_soc_cs4270
> snd_compress 11668 1 snd_soc_core
> snd_pcm_dmaengine 5061 2 snd_soc_core,snd_soc_omap
> snd_pcm 77081 4
> snd_soc_davinci_mcasp,snd_soc_core,snd_soc_omap,snd_pcm_dmaengine
> snd_timer 16860 1 snd_pcm
> snd 56902 4 snd_soc_core,snd_timer,snd_pcm,snd_compress
> soundcore 6869 1 snd
> pvrsrvkm 147014 0
> omap_aes 13089 0
> omap_sham 19190 0
> tda998x 11683 1
> tilcdc 27919 0
> omap_rng 4354 0
> rng_core 7270 1 omap_rng
> drm_kms_helper 106610 3 tda998x,tilcdc
> uio_pdrv_genirq 3317 0
> leds_gpio 3102 0
> uio 8330 1 uio_pdrv_genirq
>
> but when I try to play an audio file I get a stream of transmit buffer
> underflows and no audio:
>
> aplay test128.wav
> Playing WAVE 'test128.wav' : Signed 16 bit Little Endian, Rate 48000 Hz,
> Stereo
> underrun!!! (at least 1.630 ms long)
> underrun!!! (at least 5.413 ms long)
> underrun!!! (at least 0.636 ms long)
> underrun!!! (at least 5.369 ms long)
> underrun!!! (at least 0.217 ms long)
> underrun!!! (at least 0.641 ms long)
> underrun!!! (at least 5.254 ms long)
>
> dmesg
> [ 1493.190031] davinci-mcasp 48038000.mcasp: Transmit buffer underflow
> [ 1493.201647] davinci-mcasp 48038000.mcasp: Transmit buffer underflow
> [ 1493.218719] davinci-mcasp 48038000.mcasp: Transmit buffer underflow
> [ 1493.229946] davinci-mcasp 48038000.mcasp: Transmit buffer underflow
> [ 1493.245328] davinci-mcasp 48038000.mcasp: Transmit buffer underflow
> [ 1493.259411] davinci-mcasp 48038000.mcasp: Transmit buffer underflow
> [ 1493.270549] davinci-mcasp 48038000.mcasp: Transmit buffer underflow
>
> Using a software oscilloscope, I can see that the frame clock starts on
> mcasp0_fsx frame clock line but stops after a few periods. There’s no
> activity on the on the mcasp0_axr2 audio out line.
>
> This might be related to the problem mentioned here, but I couldn't see a
> solution for it. I might also have missed something trivial. Any pointers or
> help would be much appreciated.
>
> Additional information:
> I’m using the v4.1.3-bone15 linux kernel with
> debian-8.1-minimal-armhf-2015-06-09 compiled as per Robert C Nelsons
> instructions here.
>
> The board I’m using is an XMOS XA-SK-AUDIO slice and consists of two Cirrus
> Logic cs4270 codecs and an onboard oscillator generating the master clock.
> I’ve interfaced the board to a XMOS micro controller to make sure the board
> is in working order (and it is). When connected to the BBB, reset
> de-assertion and some initial i2c codec configuration (setting the codecs in
> software mode) are handled by the same XMOS micro controller.
>
> The overlay I’m using (compiled and installed using bb-overlays) looks like
> this:
> /dts-v1/;
> /plugin/;
>
> / {
> compatible = "ti,beaglebone", "ti,beaglebone-black";
> part-number = "BB-BONE-XA-SK-AU";
> version = "00A0";
>
> exclusive-use =
> /* pin header usage */
> "P9.25", /* mcasp0_ahclkx <- MCLK */
> "P9.31", /* mcasp0_aclkx <-> BCLK*/
> "P9.29", /* mcasp0_fsx <-> LRCLK */
> "P9.30", /* mcasp0_axr0 <- ADC_DATA0 */
> "P9.41", /* mcasp0_axr1 <- ADC_DATA1 */
> "P9.28", /* mcasp0_axr2 -> DAC_DATA0 */
> "P9.27", /* mcasp0_axr3 -> DAC_DATA1 */
> /* hardware ip usage */
> "gpio0_15", /* ext-mclk-sel -> MCLK_FSEL */
> "gpio0_20", /* CLKOUT2 disabled */
> "gpio1_27", /* internal 24.576 MHz oscillator disabled */
> "mcasp0";
>
> fragment@0 {
> target = <&am33xx_pinmux>;
> __overlay__ {
> i2c2_pins: pinmux_i2c2_pins {
> pinctrl-single,pins = <
> /* Pullup resistors available on codec board */
> 0x17c 0x2b /* i2c2_scl, (PIN_INPUT |
> MUX_MODE3) */
> 0x178 0x2b /* i2c2_sda, (PIN_INPUT |
> MUX_MODE3) */
> >;
> };
>
> mcasp0_pins: pinmux_mcasp0_pins {
> pinctrl-single,pins = <
> 0x1ac 0x20 /* mcasp0_ahclkx,
> (PIN_INPUT_PULLDOWN | MUX_MODE0) */
> 0x190 0x20 /* mcasp0_aclkx, (PIN_INPUT_PULLDOWN
> | MUX_MODE0) */
> 0x194 0x20 /* mcasp0_fsx,
> (PIN_INPUT_PULLDOWN | MUX_MODE0) */
> 0x198 0x20 /* mcasp0_axr0,
> (PIN_INPUT_PULLDOWN | MUX_MODE0) */
> 0x1a8 0x20 /* mcasp0_axr1,
> (PIN_INPUT_PULLDOWN | MUX_MODE0) */
> 0x19c 0x02 /* mcasp0_axr2,
> (PIN_OUTPUT_PULLDOWN | MUX_MODE2) */
> 0x1a4 0x02 /* mcasp0_axr3,
> (PIN_OUTPUT_PULLDOWN | MUX_MODE2) */
> /* disable internal 24.576 MHz oscillator */
> 0x06c 0x07 /* gpio1_27, (PIN_OUTPUT_PULLDOWN
> | MUX_MODE7) */
> >;
> };
>
> gpio_pins: pinmux_gpio_pins {
> pinctrl-single,pins = <
> /* ext-mclk-sel */
> 0x184 0x17 /* gpio0_15, (PIN_OUTPUT_PULLUP
> | MUX_MODE7) */
> /* disable CLKOUT2 to allow usage of mcasp0_axr1 on P9_41
> */
> 0x1b4 0x2b /* gpio0_20, (PIN_INPUT |
> MUX_MODE3) */
> >;
> };
> };
> };
>
> fragment@1 {
> target = <&i2c2>;
> __overlay__ {
> pinctrl-names = "default";
> pinctrl-0 = <&i2c2_pins>;
> status = "okay";
> #address-cells = <1>;
> #size-cells = <0>;
> clock-frequency = <100000>;
>
> cs4270m: cs4270@48 {
> compatible = "cirrus,cs4270";
> status = "okay";
> #sound-dai-cells = <0>;
> reg = <0x48>;
> name-prefix = "a";
> va-supply = <&ldo4_reg>;
> vd-supply = <&ldo4_reg>;
> vlc-supply = <&ldo4_reg>;
> };
>
> cs4270s: cs4270@49 {
> compatible = "cirrus,cs4270";
> status = "okay";
> #sound-dai-cells = <0>;
> reg = <0x49>;
> name-prefix = "b";
> va-supply = <&ldo4_reg>;
> vd-supply = <&ldo4_reg>;
> vlc-supply = <&ldo4_reg>;
> };
> };
> };
>
> fragment@2 {
> target = <&mcasp0>;
> __overlay__ {
> pinctrl-names = "default";
> pinctrl-0 = <&mcasp0_pins>;
> status = "okay";
> #sound-dai-cells = <0>;
> op-mode = <0>; // MCASP_IIS_MODE
> tdm-slots = <2>;
> num-serializer = <4>;
> serial-dir = < // 0: INACTIVE, 1: TX, 2: RX
> 2 2 1 1
> >;
> tx-num-evt = <1>;
> rx-num-evt = <1>;
> };
> };
>
> fragment@3 {
> target = <&ocp>;
> __overlay__ {
> sound {
> compatible = "simple-audio-card";
> simple-audio-card,name = "XMOS-Audio-Slice";
>
> simple-audio-card,widgets =
> "Line", "Line In 1",
> "Line", "Line Out 1",
> "Line", "Line In 2",
> "Line", "Line Out 2"
> ;
> simple-audio-card,routing =
> "a AINA", "Line In 1",
> "a AINB", "Line In 1",
> "Line Out 1", "a AOUTA",
> "Line Out 1", "a AOUTB",
> "b AINA", "Line In 2",
> "b AINB", "Line In 2",
> "Line Out 2", "b AOUTA",
> "Line Out 2", "b AOUTB"
> ;
>
> simple-audio-card,int-masterclk-enable = <&gpio1 27 0>;
>
> simple-audio-card,dai-link@1 {
> format = "i2s";
> frame-master = <&cpu_node1>;
> bitclock-master = <&cpu_node1>;
> cpu_node1: cpu {
> sound-dai = <&mcasp0>;
> system-clock-frequency = <24576000>;
> };
> codec_node1: codec {
> sound-dai = <&cs4270s>;
> system-clock-frequency = <24576000>;
> };
> };
>
> simple-audio-card,dai-link@0 {
> format = "i2s";
> frame-master = <&cpu_node0>;
> bitclock-master = <&cpu_node0>;
> cpu_node0: cpu {
> sound-dai = <&mcasp0>;
> system-clock-frequency = <24576000>;
> };
> codec_node0: codec {
> sound-dai = <&cs4270m>;
> system-clock-frequency = <24576000>;
> };
> };
> };
> };
> };
> };
>
>
> I've also made the following modifications to cs4270.c, simple-card.c, and
> soc-core.c to add a mechanism to disable the internal BBB master clock, as
> well as to fix issues with missing source/sink widgets,
> [ 137.408549] cs4270 2-0048: ASoC: no source widget found for AINA
> [ 137.414737] cs4270 2-0048: ASoC: Failed to add route AINA -> direct ->
> Capture
> [ 137.422016] cs4270 2-0048: ASoC: no source widget found for AINB
> [ 137.428137] cs4270 2-0048: ASoC: Failed to add route AINB -> direct ->
> Capture
> [ 137.435477] cs4270 2-0048: ASoC: no sink widget found for AOUTA
> [ 137.441445] cs4270 2-0048: ASoC: Failed to add route Playback -> direct ->
> AOUTA
> [ 137.448928] cs4270 2-0048: ASoC: no sink widget found for AOUTB
> [ 137.454922] cs4270 2-0048: ASoC: Failed to add route Playback -> direct ->
> AOUTB
>
> and name collisions:
> [ 51.364492] asoc-simple-card ocp:sound: control 2:0:0:Master Playback
> Volume:0 is already present
> [ 51.373469] cs4270 2-0049: ASoC: Failed to add Master Playback Volume: -16
> ...
> [ 51.393905] ------------[ cut here ]------------
> [ 51.398561] WARNING: CPU: 0 PID: 44 at fs/sysfs/dir.c:31
> sysfs_warn_dup+0x51/0x5c()
> [ 51.406281] sysfs: cannot create duplicate filename
> '/devices/platform/ocp/ocp:sound/davinci-mcasp.0-cs4270-hifi'
>
> diff --git a/sound/soc/codecs/cs4270.c b/sound/soc/codecs/cs4270.c
> index e6d4ff9..4805747 100644
> --- a/sound/soc/codecs/cs4270.c
> +++ b/sound/soc/codecs/cs4270.c
> @@ -140,11 +140,11 @@ struct cs4270_private {
> };
>
> static const struct snd_soc_dapm_widget cs4270_dapm_widgets[] = {
> -SND_SOC_DAPM_INPUT("AINL"),
> -SND_SOC_DAPM_INPUT("AINR"),
> +SND_SOC_DAPM_INPUT("AINA"),
> +SND_SOC_DAPM_INPUT("AINB"),
>
> -SND_SOC_DAPM_OUTPUT("AOUTL"),
> -SND_SOC_DAPM_OUTPUT("AOUTR"),
> +SND_SOC_DAPM_OUTPUT("AOUTA"),
> +SND_SOC_DAPM_OUTPUT("AOUTB"),
> };
>
> static const struct snd_soc_dapm_route cs4270_dapm_routes[] = {
> diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
> index 33feee9..1383b0f 100644
> --- a/sound/soc/generic/simple-card.c
> +++ b/sound/soc/generic/simple-card.c
> @@ -28,6 +28,7 @@ struct simple_card_data {
> struct asoc_simple_dai codec_dai;
> } *dai_props;
> unsigned int mclk_fs;
> + int gpio_int_masterclk_enable;
> int gpio_hp_det;
> int gpio_hp_det_invert;
> int gpio_mic_det;
> @@ -50,7 +51,7 @@ static int asoc_simple_card_startup(struct
> snd_pcm_substream *substream)
> ret = clk_prepare_enable(dai_props->cpu_dai.clk);
> if (ret)
> return ret;
> -
> +
> ret = clk_prepare_enable(dai_props->codec_dai.clk);
> if (ret)
> clk_disable_unprepare(dai_props->cpu_dai.clk);
> @@ -167,6 +168,12 @@ static int asoc_simple_card_dai_init(struct
> snd_soc_pcm_runtime *rtd)
> if (ret < 0)
> return ret;
>
> + /* TODO: Logic for enabling internal clock if specified in DT*/
> + if (gpio_is_valid(priv->gpio_int_masterclk_enable)) {
> + dev_info(NULL, "Setting gpio_int_masterclk_enable = 0");
> + gpio_set_value(priv->gpio_int_masterclk_enable, 0);
> + }
> +
> if (gpio_is_valid(priv->gpio_hp_det)) {
> snd_soc_card_jack_new(rtd->card, "Headphones",
> SND_JACK_HEADPHONE,
> @@ -195,16 +202,18 @@ static int asoc_simple_card_dai_init(struct
> snd_soc_pcm_runtime *rtd)
> }
>
> static int
> -asoc_simple_card_sub_parse_of(struct device_node *np,
> - struct asoc_simple_dai *dai,
> - struct device_node **p_node,
> - const char **name,
> - int *args_count)
> +asoc_simple_card_sub_parse_of(struct simple_card_data *priv,
> + struct device_node *np,
> + struct asoc_simple_dai *dai,
> + struct device_node **p_node,
> + const char **name,
> + int *args_count, bool codec_device, int idx)
> {
> struct of_phandle_args args;
> struct clk *clk;
> u32 val;
> int ret;
> + const char *str = NULL;
>
> /*
> * Get node via "sound-dai = <&phandle port>"
> @@ -225,6 +234,18 @@ asoc_simple_card_sub_parse_of(struct device_node *np,
> if (ret < 0)
> return ret;
>
> + /* get name-prefix */
> + if (codec_device) {
> + /* NULL bypasses the device name check in soc-core */
> + priv->snd_card.codec_conf[idx].dev_name = NULL;
> + priv->snd_card.codec_conf[idx].of_node = *p_node;
> + of_property_read_string(*p_node, "name-prefix", &str);
> + if (str)
> + priv->snd_card.codec_conf[idx].name_prefix = str;
> + else
> + priv->snd_card.codec_conf[idx].name_prefix = NULL;
> + }
> +
> /* Parse TDM slot */
> ret = snd_soc_of_parse_tdm_slot(np, &dai->slots, &dai->slot_width);
> if (ret)
> @@ -334,16 +355,16 @@ static int asoc_simple_card_dai_link_of(struct
> device_node *node,
> if (ret < 0)
> goto dai_link_of_err;
>
> - ret = asoc_simple_card_sub_parse_of(cpu, &dai_props->cpu_dai,
> + ret = asoc_simple_card_sub_parse_of(priv, cpu, &dai_props->cpu_dai,
> &dai_link->cpu_of_node,
> &dai_link->cpu_dai_name,
> - &cpu_args);
> + &cpu_args, false, idx);
> if (ret < 0)
> goto dai_link_of_err;
>
> - ret = asoc_simple_card_sub_parse_of(codec, &dai_props->codec_dai,
> + ret = asoc_simple_card_sub_parse_of(priv, codec, &dai_props->codec_dai,
> &dai_link->codec_of_node,
> - &dai_link->codec_dai_name, NULL);
> + &dai_link->codec_dai_name, NULL, true, idx);
> if (ret < 0)
> goto dai_link_of_err;
>
> @@ -357,8 +378,10 @@ static int asoc_simple_card_dai_link_of(struct
> device_node *node,
>
> /* DAI link name is created from CPU/CODEC dai name */
> name = devm_kzalloc(dev,
> - strlen(dai_link->cpu_dai_name) +
> - strlen(dai_link->codec_dai_name) + 2,
> + strlen(dai_link->cpu_dai_name) +
> + strlen(dai_link->codec_dai_name) +
> + (priv->snd_card.codec_conf[idx].name_prefix ?
> + strlen(priv->snd_card.codec_conf[idx].name_prefix) + 3 : 2),
> GFP_KERNEL);
> if (!name) {
> ret = -ENOMEM;
> @@ -367,6 +390,9 @@ static int asoc_simple_card_dai_link_of(struct
> device_node *node,
>
> sprintf(name, "%s-%s", dai_link->cpu_dai_name,
> dai_link->codec_dai_name);
> + if (priv->snd_card.codec_conf[idx].name_prefix)
> + sprintf(name, "%s-%s", name,
> + priv->snd_card.codec_conf[idx].name_prefix);
> dai_link->name = dai_link->stream_name = name;
> dai_link->ops = &asoc_simple_card_ops;
> dai_link->init = asoc_simple_card_dai_init;
> @@ -459,6 +485,15 @@ static int asoc_simple_card_parse_of(struct device_node
> *node,
> return ret;
> }
>
> + /* request GPIO to control internal 24.576MHz oscillator */
> + priv->gpio_int_masterclk_enable = of_get_named_gpio_flags(node,
> + "simple-audio-card,int-masterclk-enable", 0, &flags);
> +
> + if (priv->gpio_int_masterclk_enable == -EPROBE_DEFER)
> + return -EPROBE_DEFER;
> + gpio_request_one(priv->gpio_int_masterclk_enable, GPIOF_OUT_INIT_LOW,
> + "Internal Clock Enable Pin");
> +
> priv->gpio_hp_det = of_get_named_gpio_flags(node,
> "simple-audio-card,hp-det-gpio", 0, &flags);
> priv->gpio_hp_det_invert = !!(flags & OF_GPIO_ACTIVE_LOW);
> @@ -498,13 +533,18 @@ static int asoc_simple_card_probe(struct
> platform_device *pdev)
> struct snd_soc_dai_link *dai_link;
> struct device_node *np = pdev->dev.of_node;
> struct device *dev = &pdev->dev;
> - int num_links, ret;
> + int num_links = (np && of_get_child_by_name(np,
> + "simple-audio-card,dai-link")) ?
> + of_get_child_count(np) : 1;
> + struct snd_soc_codec_conf codec_conf[num_links];
> + int ret;
>
> - /* Get the number of DAI links */
> + /* Get the number of DAI links
> if (np && of_get_child_by_name(np, "simple-audio-card,dai-link"))
> num_links = of_get_child_count(np);
> else
> num_links = 1;
> + */
>
> /* Allocate the private data and the DAI link array */
> priv = devm_kzalloc(dev,
> @@ -519,6 +559,8 @@ static int asoc_simple_card_probe(struct platform_device
> *pdev)
> dai_link = priv->dai_link;
> priv->snd_card.dai_link = dai_link;
> priv->snd_card.num_links = num_links;
> + priv->snd_card.codec_conf = codec_conf;
> + priv->snd_card.num_configs = num_links;
>
> priv->gpio_hp_det = -ENOENT;
> priv->gpio_mic_det = -ENOENT;
> @@ -589,6 +631,11 @@ static int asoc_simple_card_remove(struct
> platform_device *pdev)
> struct snd_soc_card *card = platform_get_drvdata(pdev);
> struct simple_card_data *priv = snd_soc_card_get_drvdata(card);
>
> + if (gpio_is_valid(priv->gpio_int_masterclk_enable)) {
> + gpio_set_value(priv->gpio_int_masterclk_enable, 0);
> + gpio_free(priv->gpio_int_masterclk_enable);
> + }
> +
> if (gpio_is_valid(priv->gpio_hp_det))
> snd_soc_jack_free_gpios(&simple_card_hp_jack, 1,
> &simple_card_hp_jack_gpio);
> diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
> index 2373252..4808089 100644
> --- a/sound/soc/soc-core.c
> +++ b/sound/soc/soc-core.c
> @@ -1102,6 +1102,9 @@ static void soc_set_name_prefix(struct snd_soc_card
> *card,
>
> for (i = 0; i < card->num_configs; i++) {
> struct snd_soc_codec_conf *map = &card->codec_conf[i];
> +
> + if (!map->name_prefix)
> + continue;
> if (map->of_node && component->dev->of_node != map->of_node)
> continue;
> if (map->dev_name && strcmp(component->name, map->dev_name))
>
>
> Thanks in advance,
> Shadi
>
>
> --
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--
Rick Mann
[email protected]
--
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