openwrt wrt1900acs dfs

gistfile1.txt

How to make your router's Wifi(5GHz) channel changes stopped
- - - -

0. Download the os image.
http://downloads.openwrt.org/releases/19.07-SNAPSHOT/targets/mvebu/cortexa9/

1. Install the image to your router.
sysupgrade -V xxxx.bin

2. Prepare the sdk environment for your router.
https://openwrt.org/docs/guide-developer/using_the_sdk
docker pull tf0054/openwrt-wrt1900acs:sdk

3. Know the modification for disabling DFS
https://github.com/burton1982/mwlwifi/commit/849420b2c158bf5a43a2e0d82b6b04552dd047d3

4. Make the mwlwifi module by yourself for the specified kernel.

```
sudo apt update
sudo apt-install vim procps

./scripts/feeds update -a c
./scripts/feeds install mwlwifi

make package/feeds/base/mwlwifi/download
make package/feeds/base/mwlwifi/prepare
vi target-arm_cortex-a9+vfpv3_musl_eabi/linux-mvebu_cortexa9/mwlwifi-2019-03-02-31d93860/hif/pcie/pcie.c
make package/feeds/base/mwlwifi/compile
cp ~/openwrt/bin/targets/mvebu/cortexa9/packages/kmod-mwlwifi_4.14.138+2019-03-02-31d93860-1_arm_cortex-a9_vfpv3.ipk /tmp
```

5. Get the newly compiled package to your pc.
scp sdk:/tmp/kmod-mwlwifi_4.14.138+2019-03-02-31d93860-1_arm_cortex-a9_vfpv3.ipk .

6. Login to your router.
ssh [email protected]

7. Overwrite the package with the new one.
opkg install --force-reinstall kmod-mwlwifi_4.14.138+2019-03-02-31d93860-1_arm_cortex-a9_vfpv3.ipk