Hi, I have written a new driver for audio amplifier. I am using IMX hardware and ported android on it. Druing the board boot up snd_pcm_playback_open called and it remains open till boot completed. When i tries to play the music file no sound is comming. Please check attached log. What could be wrong? -Paul
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mtp_bind_config init: command 'write' r=0 init: command 'setprop' r=0 init: starting 'bootanim' snd_open in snd_lookup_minor_data in snd_lookup_minor_data out snd_open out snd_pcm_next snd_pcm_get snd_pcm_info_user in snd_pcm_info in snd_pcm_info out snd_pcm_info_user out snd_pcm_next snd_pcm_next snd_pcm_get snd_pcm_info_user in snd_pcm_info in snd_pcm_info out snd_pcm_info_user out snd_pcm_next snd_card_file_remove in snd_card_file_remove out snd_open in snd_lookup_minor_data in snd_lookup_minor_data out snd_open out snd_card_file_remove in snd_card_file_remove out snd_open in snd_lookup_minor_data in snd_lookup_minor_data out snd_open out snd_card_file_remove in snd_card_file_remove out ERROR: v4l2 capture: slave not found! ERROR: v4l2 capture: slave not found! ERROR: v4l2 capture: slave not found! ERROR: v4l2 capture: slave not found! snd_open in snd_lookup_minor_data in snd_lookup_minor_data out snd_open out snd_card_file_remove in snd_card_file_remove out snd_open in snd_lookup_minor_data in snd_lookup_minor_data out snd_open out snd_card_file_remove in snd_card_file_remove out snd_open in snd_lookup_minor_data in snd_lookup_minor_data out snd_open out snd_card_file_remove in snd_card_file_remove out snd_open in snd_lookup_minor_data in snd_lookup_minor_data out snd_open out snd_card_file_remove in snd_card_file_remove out snd_open in snd_lookup_minor_data in snd_lookup_minor_data out snd_open out snd_card_file_remove in snd_card_file_remove out snd_open in snd_lookup_minor_data in snd_lookup_minor_data out snd_open out snd_card_file_remove in snd_card_file_remove out snd_open in snd_pcm_playback_open in snd_lookup_minor_data in snd_lookup_minor_data out snd_pcm_open snd_pcm_open_file in snd_pcm_open_substream in snd_pcm_attach_substream snd_pcm_hw_constraints_init snd_pcm_hw_constraints_init out soc_pcm_open: in imx_ssi_startup: snd_imx_open imx_hifi_startup IN tasb_clk_enable imx_hifi_startup OUT soc_pcm_open: out snd_pcm_hw_constraints_complete in snd_pcm_hw_constraints_complete out snd_pcm_open_file out snd_pcm_playback_open out snd_open out snd_card_file_remove in snd_card_file_remove out snd_pcm_info_user in snd_pcm_info in snd_pcm_info out snd_pcm_info_user out snd_pcm_hw_params_user in snd_pcm_hw_params in soc_pcm_hw_params: in imx_hifi_hw_params IN tas_set_dai_fmt SND_SOC_DAIFMT_CBS_CFS tas_set_dai_fmt SND_SOC_DAIFMT_I2S tas_set_dai_fmt SND_SOC_DAIFMT_NB_NF imx_ssi_set_dai_tdm_slot: imx_ssi_set_dai_fmt: tas_set_fll snd_soc_dai_set_sysclk: imx_hifi_hw_params OUT tas_hw_params tas->lrclk 44100 tasb_init audio chip reset tas_hw_params SNDRV_PCM_FORMAT_S16_LE imx_ssi_hw_params: snd_imx_pcm_hw_params imx_ssi_dma_alloc soc_pcm_hw_params: out period_to_usecs snd_pcm_hw_params_user out snd_pcm_sw_params_user in snd_pcm_sw_params in snd_pcm_sw_params out snd_pcm_sw_params_user out snd_pcm_channel_info_user in snd_pcm_channel_info in snd_pcm_channel_info out snd_pcm_channel_info_user out snd_pcm_channel_info_user in snd_pcm_channel_info in snd_pcm_channel_info out snd_pcm_channel_info_user out snd_imx_pcm_mmap: snd_pcm_prepare in snd_pcm_action_nonatomic in snd_pcm_action_single in state 655362 snd_pcm_pre_prepare snd_pcm_do_prepare soc_pcm_prepare: in Playback snd_imx_pcm_prepare snd_soc_dapm_stream_event: in soc_dapm_stream_event: in dapm_power_widgets: in dapm_power_widgets: pdata SND_SOC_DAPM_STREAM_START dapm_pre_sequence_async: in dapm_pre_sequence_async: pdata SND_SOC_BIAS_STANDBY snd_soc_dapm_set_bias_level: in tas_set_bias_level snd_soc_dapm_set_bias_level: out dapm_pre_sequence_async: pdata SND_SOC_BIAS_PREPARE snd_soc_dapm_set_bias_level: in tas_set_bias_level snd_soc_dapm_set_bias_level: out dapm_pre_sequence_async: in dapm_pre_sequence_async: pdata SND_SOC_BIAS_STANDBY snd_soc_dapm_set_bias_level: in snd_soc_dapm_set_bias_level: out dapm_pre_sequence_async: pdata SND_SOC_BIAS_PREPARE snd_soc_dapm_set_bias_level: in snd_soc_dapm_set_bias_level: out dapm_seq_run: in dapm_seq_run: out dapm_widget_update: in dapm_seq_run: in dapm_seq_run: out dapm_post_sequence_async: in dapm_post_sequence_async: pdata SND_SOC_BIAS_ON snd_soc_dapm_set_bias_level: in tas_set_bias_level snd_soc_dapm_set_bias_level: out dapm_post_sequence_async: in dapm_post_sequence_async: pdata SND_SOC_BIAS_ON snd_soc_dapm_set_bias_level: in snd_soc_dapm_set_bias_level: out pop_dbg: in pop_wait: in pop_wait: out dapm_power_widgets: out soc_dapm_stream_event: out snd_soc_dapm_stream_event: out soc_pcm_prepare: out snd_pcm_do_reset snd_pcm_post_prepare snd_pcm_action_single out 0 state 655362 snd_pcm_action_nonatomic out snd_pcm_prepare out snd_pcm_sw_params_user in snd_pcm_sw_params in snd_pcm_sw_params out snd_pcm_sw_params_user out snd_open in snd_lookup_minor_data in snd_lookup_minor_data out snd_open out snd_card_file_remove in snd_card_file_remove out snd_open in snd_lookup_minor_data in snd_lookup_minor_data out snd_open out snd_card_file_remove in snd_card_file_remove out snd_open in snd_lookup_minor_data in snd_lookup_minor_data out snd_open out snd_pcm_next snd_pcm_get snd_pcm_info_user in snd_pcm_info in snd_pcm_info out snd_pcm_info_user out snd_pcm_next snd_card_file_remove in snd_card_file_remove out snd_open in snd_lookup_minor_data in snd_lookup_minor_data out snd_open out snd_card_file_remove in snd_card_file_remove out snd_open in snd_lookup_minor_data in snd_lookup_minor_data out snd_open out snd_pcm_drain in snd_pcm_action in snd_pcm_action_single in state 0 snd_pcm_pre_drain_init in snd_pcm_pre_drain_init out snd_pcm_do_drain_init in snd_pcm_do_drain_init out snd_pcm_action_single out 0 state 0 snd_pcm_action out 0 snd_pcm_drain out
