** Also affects: linux-raspi (Ubuntu Plucky)
Importance: Critical
Status: Confirmed
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https://bugs.launchpad.net/bugs/2106230
Title:
wlan0 interface missing on pre-4B models
Status in linux-raspi package in Ubuntu:
Confirmed
Status in linux-raspi source package in Plucky:
Confirmed
Bug description:
On the Pi 3B, 3B+, and Zero 2W (probably 3A+ too, not yet verified),
the wlan0 interface is missing. Notably these models have different
WiFi interfaces (4343x on the 3B/Zero 2W, 4345x on the 3A+/3B+), but
wlan0 *does* appear on the 4B and 5 (which use the 4345x as well).
Nothing apparent in dmesg output -- it's appears it doesn't even
attempt to load the brcmfmac firmware, which makes me suspect this is
not an issue in linux-firmware-raspi. Perhaps related to the sdhost
interface change? I have a vague recollection that sdhost was used for
the wifi interface on some models?
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