From owner-freebsd-arm@FreeBSD.ORG Tue Mar 24 19:00:00 2015 Return-Path: Delivered-To: freebsd-arm@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 60ED9D68 for ; Tue, 24 Mar 2015 19:00:00 +0000 (UTC) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 47D6B791 for ; Tue, 24 Mar 2015 19:00:00 +0000 (UTC) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.14.9/8.14.9) with ESMTP id t2OJ00WU031974 for ; Tue, 24 Mar 2015 19:00:00 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-arm@FreeBSD.org Subject: [Bug 198783] I2C driver for AM335X enhancement Date: Tue, 24 Mar 2015 18:59:59 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: arm X-Bugzilla-Version: 11.0-CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: loos@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-arm@FreeBSD.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Mar 2015 19:00:00 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=198783 Luiz Otavio O Souza changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |loos@FreeBSD.org --- Comment #1 from Luiz Otavio O Souza --- I've explained to the OP on IRC that this change, as implemented here, has a few drawbacks: - We would need to copy the same code to all i2c controllers; - It does not do what an i2c user would expect. An I2CSTART call, for example, will not generate a start condition on i2c bus. I recommended that this logic (of using I2CRDWR instead of individual I2C events) could be moved to i2c(8), which in turn should support both methods for read, write and bus scan. -- You are receiving this mail because: You are the assignee for the bug.