更新 README.md

This commit is contained in:
Baozhu Zuo 2017-05-18 18:04:54 +08:00
parent 3fead64100
commit b2f452a27d

View file

@ -4,30 +4,21 @@ Firstly, get an updated kernel 4.9 :
```
sudo apt update
sudo apt dist-upgrade
sudo apt install git rpi-update bc dkms
sudo BRANCH=next rpi-update
sudo reboot
sudo apt install raspberrypi-kernel-headers
```
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
```
Next, while the upstream wm8960 codec is not currently supported by current Pi kernel builds, upstream wm8960 has some bugs, we had fixed it. we must it build manually.
Get the seeed voice card source code.
```
git clone http://git.oschina.net/seeed-se/seeed-voicecard
cd seeed-voicecard
sudo make all install
make all
```
Next, copy then voice card overlay to boot dir, then apply it.
```
sudo cp seeed-voicecard.dtbo /boot/overlays
sudo reboot
sudo modprobe wm8960
sudo dtoverlay seeed-voicecard
```
Load the driver default.
```
@ -61,9 +52,9 @@ pi@raspberrypi:~/seeed-voicecard$
```
Next apply the alsa controls setting
```
sudo 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.
If you want to change the alsa settings, You can use "sudo alsactl --file=asound.state store " to save it.
Test:
```