I'm looking for WLAN (WiFi) chipsets or adaptors that support simultaneous dual-channel use and where this capability is exposed via the current Linux drivers. The primary use-case is to support simultaneous operation as a station on one channel and as an access-point on a different channel. This could be either:
- Simultaneous operation on two channels in the same band (2.4GHz or 5GHz) - much preferred;
- Simultaneous operation as a station on a channel in one band and an AP on a channel in the other band.
This would be a device where
iw list would not have the restriction
#channels <= 1 under "valid interface combinations".
For a bonus, mesh should be supported.
A sort of similar question (full-featured WLAN USB adaptor) was asked 5 years ago but the world has moved on since then.