Date: Fri, 17 Sep 2004 09:11:47 -0700 (PDT) From: Luigi Rizzo <rizzo@icir.org> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/71818: support for DMR1000 USP flash pen/mp3 player Message-ID: <200409171611.i8HGBl2n022075@xorpc.icir.org> Resent-Message-ID: <200409171620.i8HGKOti014710@freefall.freebsd.org>
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>Number: 71818
>Category: kern
>Synopsis: support for DMR1000 USP flash pen/mp3 player
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Fri Sep 17 16:20:23 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator: Luigi Rizzo
>Release: RELENG_4
>Organization:
Univ di Pisa
>Environment:
System: FreeBSD xorpc.icir.org 4.8-RELEASE FreeBSD 4.8-RELEASE #0: Mon Apr 7 20:59:56 PDT 2003 root@xorpc.icir.org:/usr/src/sys/compile/ICIR-4.8-USB i386
RELENG_4 trying to use a USB Flash Pen/MP3 player labeled DMR1000
or DMR1128/DMR1256 (USB vendor 0x8206 Product 0x066f)
The one I have identifies as "Digital" "MP3 Music Player"
>Description:
The device is recognised by umass, but accessing it with fdisk or
other things hangs. Upon investigation, it turns out that the device
does not like a couple of scsi commands (PREVENT_ALLOW_REMOV*
and SYNC_CACHE), and the following quirks suffice to remove
the problem and make everything work:
DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
On 5.2.1 the quirk is not necessary, but i have not been able to
figure out why -- on both systems i believe the device tries to
use SCSI over BBB only, I have tried (in umass.c) to use different
protocols such as ATAPI or UFI but it did not help, nor it helped
to use DA_Q_NO_6_BYTE.
>How-To-Repeat:
>Fix:
The attached patch (RELENG_4 only) fixes the problem.
Index: scsi_da.c
===================================================================
RCS file: /home/ncvs/src/sys/cam/scsi/scsi_da.c,v
retrieving revision 1.42.2.50
diff -u -r1.42.2.50 scsi_da.c
--- scsi_da.c 8 May 2004 04:02:34 -0000 1.42.2.50
+++ scsi_da.c 17 Sep 2004 15:57:55 -0000
@@ -312,6 +312,13 @@
},
{
/*
+ * DMR1000 USB Flash MP3 Player
+ */
+ {T_DIRECT, SIP_MEDIA_REMOVABLE, "Digital", "MP3*", "*"},
+ /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
+ },
+ {
+ /*
* Neuros USB Digital Audio Computer
* PR: kern/63645
*/
>Release-Note:
>Audit-Trail:
>Unformatted:
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