update readme file

This commit is contained in:
Baozhu Zuo 2017-04-27 17:41:39 +08:00
parent c9f4ab3a1e
commit dcfaba0069

View file

@ -9,7 +9,7 @@ sudo BRANCH=next rpi-update
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
```
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
```
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:
```