Users needed to test Wi-Fi stability on Linksys WRT3200ACM & WRT32X on OpenWrt 21.02

[cotequeiroz]

@adworacz

@WildByDesign

I believe that this method will also benefit WRT1200AC, WRT1900AC, and WRT1900ACS users

@WildByDesign - we will need to double check this. It's not just the different firmware blobs, but there's potentially different processors as well, which changes the build requirements and aren't apples-to-apples compatible with the WRT3200CM/WRT32X packages. To be frank, I haven't double checked the device tree just yet, so they might be compatible, we just need to be sure.

I don't have access to any WRT1200/1900, so I won't be able to tell if the mac80211 downgrade is necessary or not. What I can say is that the kmod-mwlwifi package is the same across all of the mvebu/cortexa9 family, although--luckily for the rest of the pack--only the WRT series uses it.
Like @WildByDesign pointed out, the firmare packages are NOT the same. WRT3* series use mwlwifi-firmware-88w8964, while WRT1* series need mwlwifi-firmware-88w8864.
Like I said, I don't have the devices, but in theory, one can test if it fixes anything by installing the following packages (basically the same as wrt32*, except for mwifiex-sdio is not installed) from https://drive.google.com/drive/folders/1qOFN0bt2XQTGeC-9LhWfOLqf93wOsiv3?usp=sharing:

• kmod-cfg80211_5.4.154+5.7.5-1-1_arm_cortex-a9_vfpv3-d16.ipk
• kmod-mac80211_5.4.154+5.7.5-1-1_arm_cortex-a9_vfpv3-d16.ipk
• kmod-mwlwifi_5.4.154+2020-02-06-a2fd00bb-2_arm_cortex-a9_vfpv3-d16.ipk (this one needs to be installed from the link above, even though the version number is the same as the official package!)