From owner-freebsd-usb@FreeBSD.ORG Mon Mar 23 16:47:07 2009 Return-Path: Delivered-To: freebsd-usb@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6080010656D7 for ; Mon, 23 Mar 2009 16:47:07 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from harmony.bsdimp.com (bsdimp.com [199.45.160.85]) by mx1.freebsd.org (Postfix) with ESMTP id 0F8FF8FC13 for ; Mon, 23 Mar 2009 16:47:06 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from localhost (localhost [127.0.0.1]) by harmony.bsdimp.com (8.14.2/8.14.1) with ESMTP id n2NGk7J4068599; Mon, 23 Mar 2009 10:46:07 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Mon, 23 Mar 2009 10:46:41 -0600 (MDT) Message-Id: <20090323.104641.-75255559.imp@bsdimp.com> To: meslists@yahoo.fr From: "M. Warner Losh" In-Reply-To: <49C7AFFE.4060001@yahoo.fr> References: <49C7AFFE.4060001@yahoo.fr> X-Mailer: Mew version 5.2 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: freebsd-usb@freebsd.org Subject: Re: external DVD Rewriter X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Mar 2009 16:47:07 -0000 In message: <49C7AFFE.4060001@yahoo.fr> dan writes: : Hi ! : : I recently added an external LG dvd rewriter to a clean FreeBSD 7.1 : installation. : : ------- : umass0: on uhub3 : cd0 at umass-sim0 bus 0 target 0 lun 0 : cd0: Removable CD-ROM SCSI-0 device : ------- : : As soon as I installed the xorg + gnome 2 ports these `odd` messages : started to continuously appear in ttyv0 : : : ------- : umass0: Unsupported ATAPI command 0x4a - trying anyway : umass0: Unsupported ATAPI command 0x4a - trying anyway : umass0: Unsupported ATAPI command 0x46 - trying anyway : umass0: Unsupported ATAPI command 0x4a - trying anyway : [....] : umass0: Unsupported ATAPI command 0x4a - trying anyway : [....] : ------- : : After investigating a bit, I suppose these messages are a kind of an : answer from the umass driver to HAL inquiries ( ... disabling HAL the : messages disappear). : : the doubts and questions are: ...is the command really an unsupported : command or is it a bug ? : : In case it is a bug, to whom should I fill in a PR ? Old usb printed this warning because of history. Originally it was an error because the thumb drives were stupid POS at the time and any command that they didn't understand would take an error path that hung the device. Bad kharma. In time, I got tired of adding each new command so that my dvd burner would work, so I just said "screw it, this is a warning now, and if somebody's drive fraks up, then so be it: they will know what's going on at least. Besides, people that try to burn a CD/DVD on their 256MB flash drive don't need that much protection: bad things happening to them isn't necessarily bad." Usb in 8.0 I think eliminated the warning. Warner