Date: Sat, 5 Sep 2020 21:17:43 +0200 From: Klaus Cucinauomo <maciphone2@googlemail.com> To: tech-lists <tech-lists@zyxst.net>, freebsd-arm@freebsd.org Subject: Re: onboard wireless on rpi4 Message-ID: <9C0C5FEB-2620-49C2-8501-190237644884@googlemail.com> In-Reply-To: <20200905181220.GG80905@bastion.zyxst.net> References: <20200904134619.GB80905@bastion.zyxst.net> <69934262-D9D3-4986-849D-9E8221D1E387@kronometrix.org> <1677459627.55.1599232125847@localhost> <75E08DC2-D229-45AA-85AE-CCF06FD0B490@kronometrix.org> <AAA3DC42-5C3E-4A1D-BE75-A20DE3BC300F@googlemail.com> <09959D86-E3E3-43E9-8134-C2FC73343DBA@lists.zabbadoz.net> <20200905181220.GG80905@bastion.zyxst.net>
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> Am 05.09.2020 um 20:12 schrieb tech-lists <tech-lists@zyxst.net>: >=20 > ...Sure, it'll be the next thing i build ... > Have to admit i've never built MMCCAM kernel before for rpi 1,2b+ or = 3b+. > What's significant about it? >=20 > thanks, > --=20 > J. Thanks that you=E2=80=99re willing to step into tests ( a very important = thing to save the devs some (testing) time=20 And give feedback on boards/machines that devs don=E2=80=99t own)! `ll try to describe mmccam in simplest human understandable words : mmccam enables the output of : 'camcontrol devlist`=E2=80=A6.=20 what will (currently)return an empty tag on the second SDIO-IC on RPI , what means that there is something available on the SDIO-bus(the = Wifi-chip), which can=E2=80=99t be initialized because of a missing driver/firmware. The brcm-wifi-chip on the RPI4 is detected over the SDIO-bus( SD means = SD-card, IO means in/out). MMC means : MultiMediaCard. CAM means: Common Access Method, which is a SCSI-subsystem in Fbsd. So Bj=C3=B6rn talks to the Wifi-chip via the SD-Card-bus which is = 'detected'=20 over the SCSI-bus in his CAM-implementation. GENERIC-MMCCAM,as Bj=C3=B6rn told,( to say in hard but friendly words = :-) Ha Ha ),=20 isn=E2=80=99t enabled by default in GENERIC(-nodebug) because it = currently doesn=E2=80=99t do anything final=20 for production-mode (e.g. on the RPI). So the best thing which could happen is that my description is totally = outdated and wrong- and you would see fully working WIFI on your RPI :-), but don=E2=80=99t = expect that for now... Good luck, Regards kls
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