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update readme file

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Baozhu Zuo 2017-04-27 17:41:39 +08:00
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README.md
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@ -9,7 +9,7 @@ sudo BRANCH=next rpi-update
sudo reboot sudo reboot
``` ```
Install matching kernel header files: Install matching kernel header files(come from https://www.raspberrypi.org/forums/):
eg. Get your kernel verson "uname -r", then eg. Get your kernel verson "uname -r", then
``` ```
wget https://www.niksula.hut.fi/~mhiienka/Rpi/linux-headers-rpi/linux-headers-4.9.13-v7%2B_4.9.13-v7%2B-2_armhf.deb wget https://www.niksula.hut.fi/~mhiienka/Rpi/linux-headers-rpi/linux-headers-4.9.13-v7%2B_4.9.13-v7%2B-2_armhf.deb
@ -54,8 +54,9 @@ pi@raspberrypi:~/seeed-voicecard$
``` ```
Next apply the alsa controls setting Next apply the alsa controls setting
``` ```
alsactl --file ./asound.state restore sudo alsactl --file ./asound.state restore
``` ```
If you want to change the alsa settings, You can use "sudo alsactl --file ./asound.state store 1" to save it.
Test: Test:
``` ```