From owner-freebsd-drivers@freebsd.org Fri May 8 22:08:23 2020 Return-Path: Delivered-To: freebsd-drivers@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 6AB322E5EE1 for ; Fri, 8 May 2020 22:08:23 +0000 (UTC) (envelope-from jmg@gold.funkthat.com) Received: from gold.funkthat.com (gate2.funkthat.com [208.87.223.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "gate2.funkthat.com", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49Jkx20Z9jz3LQ0 for ; Fri, 8 May 2020 22:08:21 +0000 (UTC) (envelope-from jmg@gold.funkthat.com) Received: from gold.funkthat.com (localhost [127.0.0.1]) by gold.funkthat.com (8.15.2/8.15.2) with ESMTPS id 048M8Ckj065082 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 8 May 2020 15:08:12 -0700 (PDT) (envelope-from jmg@gold.funkthat.com) Received: (from jmg@localhost) by gold.funkthat.com (8.15.2/8.15.2/Submit) id 048M8CKe065081; Fri, 8 May 2020 15:08:12 -0700 (PDT) (envelope-from jmg) Date: Fri, 8 May 2020 15:08:12 -0700 From: John-Mark Gurney To: Kleber Povoacao Cc: freebsd-drivers@freebsd.org Subject: Re: beginner develop broadcom 4360 Message-ID: <20200508220812.GJ4213@funkthat.com> Mail-Followup-To: Kleber Povoacao , freebsd-drivers@freebsd.org References: <490F1DFB-4994-44DE-89E6-B8C630C9D415@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <490F1DFB-4994-44DE-89E6-B8C630C9D415@gmail.com> X-Operating-System: FreeBSD 11.3-STABLE amd64 X-PGP-Fingerprint: D87A 235F FB71 1F3F 55B7 ED9B D5FF 5A51 C0AC 3D65 X-Files: The truth is out there X-URL: https://www.funkthat.com/ X-Resume: https://www.funkthat.com/~jmg/resume.html X-TipJar: bitcoin:13Qmb6AeTgQecazTWph4XasEsP7nGRbAPE X-to-the-FBI-CIA-and-NSA: HI! HOW YA DOIN? can i haz chizburger? User-Agent: Mutt/1.6.1 (2016-04-27) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3 (gold.funkthat.com [127.0.0.1]); Fri, 08 May 2020 15:08:12 -0700 (PDT) X-Rspamd-Queue-Id: 49Jkx20Z9jz3LQ0 X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of jmg@gold.funkthat.com has no SPF policy when checking 208.87.223.18) smtp.mailfrom=jmg@gold.funkthat.com X-Spamd-Result: default: False [-1.02 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.92)[-0.924,0]; RCVD_TLS_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; IP_SCORE(-0.48)[ip: (-1.24), ipnet: 208.87.216.0/21(-0.62), asn: 32354(-0.50), country: US(-0.05)]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[funkthat.com]; AUTH_NA(1.00)[]; NEURAL_HAM_LONG(-0.82)[-0.818,0]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; R_SPF_NA(0.00)[]; FORGED_SENDER(0.30)[jmg@funkthat.com,jmg@gold.funkthat.com]; FREEMAIL_TO(0.00)[gmail.com]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:32354, ipnet:208.87.216.0/21, country:US]; FROM_NEQ_ENVFROM(0.00)[jmg@funkthat.com,jmg@gold.funkthat.com]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.32 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 May 2020 22:08:23 -0000 Kleber Povoacao wrote this message on Wed, May 06, 2020 at 22:00 +0200: > Hi, > > I'm reading documentation about FreeBSD kernel because I want to develop/port only one thing: Broadcom 4360 wireless driver. > Someone could mentor me the right direction to achieve such thing ? > I'm not sure how deep should I go in the kernel or which pieces should I really understand to achieve the goal. > I never developed anything to any kernel, but I have good understanding of C and some Assembly. First things, do you have documentation for the chip? if you don't have the documentation.. Second, have you looked at the handbook: https://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kernel.html -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."