Re: USB enumeration changes when it shouldn't

On 30/10/2024 16:42, bp@www.zefox.net wrote:

[continuation of wifi problems on Bookworm]
 In tinkering with a usb-wifi dongle on a Pi5 running Bookworm
it appears that adding or removing the usb-wifi dongle changes
device names in a surprising way:
 When booted with no dongle, the internal wifi is wlan0, as expected.
When booted with the dongle, the internal wifi is wlan1 and the dongle
is wlan0, a surprise.
 I expected that devices would be given enumeration in order of discovery.
 Is this behavior normal?

Yes, the usual reason for adding a WiFi dongle is to use it in preference to the built-in interface.
If you don't want that; run raspi-config and select predictable names in networking. Each interface will then have a consistent and unique name.
---druck