imx6q audio

[carmilili]

Hi, everybody

     I want to use ALSA to code.The CPU is IMX6Q. My software is  LTIB .When the CPU  boot up,but I can not find the node of '/dev/sound/dsp'.How can I do ?

root@freescale /$ aplay -l                                                     

**** List of PLAYBACK Hardware Devices ****                                    

card 0: wm8962audio [wm8962-audio], device 0: HiFi wm8962-0 []                 

  Subdevices: 1/1                                                              

  Subdevice #0: subdevice #0                                                   

card 1: imxhdmisoc [imx-hdmi-soc], device 0: IMX HDMI TX mxc-hdmi-soc-0 []     

  Subdevices: 1/1                                                              

  Subdevice #0: subdevice #0 

Thank you

[Yuri]

You may use examples from Linux test package.

Test sources (of utilites in /unit_tests directory) may be found in imx-test and mxc-misc packages.

To get them under LTIB :

$ /ltib -c

Select

   Package list -> imx-test

$ ./ltib -p mxc-misc -m prep

After that, <ltib>/rpm/BUILD/misc/test/  directory will contain the sources.

In particular, please take a look at  <ltib>/rpm/BUILD/misc/test//mxc_sound_test

Note, test images may be found in <rootfs>/unit_tests directory. 

[carmilili]

Thank you for your reply.

I have got the answer.I am testing it know.