I can't confirm, but it just might be that "ipw2x00" is actually a firmware. (Haven't seen a firware specified explicetly in the menu config before).
Ref: https://wiki.debian.org/brcm80211 I recently had a question that might share some light on the firmware - driver relation: (given that it really is firmware you check in the menuconfig) https://electronics.stackexchange.com/questions/342118/design-decision-for-dynamic-firmware-loading On Tue, Nov 28, 2017 at 4:00 PM, Jerry Lian <jerry.l...@gmail.com> wrote: > Thanks Alan, I follow your instruction and it works eventually! > > But I got another question: > > I am using official Raspberry-PI WIFI dongle (BCM43143) > I configure kernel so that driver "brcm80211" is enabled, however, WIFI is > not working. > Then I add driver "ipw2x00", then WIFI works. > So my question, why do we need both "ipw2x00" and "brcm80211" for official > Raspberry-PI WIFI dongle? > (Sometimes the WIFI dongle works if I add drivers: "brcm80211, iwlwifi, > rt2x00", without "ipw2x00", so I am really confused!) > > Thanks! > > > > > > > > On Tue, Nov 21, 2017 at 12:04 PM, Alan Martinovic > <alan.martino...@senic.com> wrote: >> >> Some hints on where to start at: >> >> > What should I do to add support for "usb WIFI dongle" >> >> Am guessing the dongle works with Raspbian or id gets detected >> once you plug it into a desktop Linux machine. >> Once you do that type: >> >> dmesg >> >> And it will list the kernel modules related to your dongle. >> You can use those buzzwords to google for what does >> enabling the dongle actually translates to in terms of kernel config. >> >> After that (depending what linux you're using) figure out how to >> run menuconfig. It might be something like: >> >> bitbake your-kernel-package-name -c menuconfig >> >> and try checking out the boxes that you found out >> might be relevant to your wifi dongle. >> Save it, build the image, and see if it got you somewhere. >> >> >> >> >> >> >> >> On Tue, Nov 21, 2017 at 5:32 PM, Jerry Lian <jerry.l...@gmail.com> wrote: >> > I am confused on adding support for "usb WIFI dongle": >> > * My boards do NOT have WIFI capability, so I will add a "usb WIFI >> > dongle". >> > (I have two boards: Raspberri-PI-2, SIMATIC IOT-2020) >> > * Suppose we start from "core-image-sato" >> > * What should I do to add support for "usb WIFI dongle" >> > * After we build/boot the image, how can we verify and bring the WIFI >> > up? >> > >> > Thanks! >> > Jerry >> > >> > -- >> > _______________________________________________ >> > yocto mailing list >> > yocto@yoctoproject.org >> > https://lists.yoctoproject.org/listinfo/yocto >> > > > -- _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto