>Number: 127980
>Category: usb
>Synopsis: [QUIRK] Fix Samsung YP U2 MP3 player on 7.x and 8.x
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-usb
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Thu Oct 09 18:00:06 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator: Ulrich Spörlein
>Release: FreeBSD 7.1-PRERELEASE i386
>Organization:
>Environment:
>Description:
In the early days of RELENG_7 the quirk below was required to avoid timeouts
with this MP3 player. But something changed in the USB code in the last few
weeks,
so that this device no longer attaches. I also tried -CURRENT from early august.
It just stalls BBB transfers and I finally rebooted the box after two hours.
Unplugging the device *always* leads to a panic, as it is stuck somewhere in
CAM land. But I guess no one is interested in *that* backtrace ...
>How-To-Repeat:
>Fix:
The fix is rather trivial: Remove the quirk and the device attaches
successfully. (at least, if it is the only device on the bus)
cf usb/114154 (which should be closed, btw)
--- umass.diff begins here ---
Index: sys/dev/usb/umass.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/usb/umass.c,v
retrieving revision 1.160.2.4
diff -u -p -r1.160.2.4 umass.c
--- sys/dev/usb/umass.c 28 Aug 2008 14:20:58 -0000 1.160.2.4
+++ sys/dev/usb/umass.c 8 Oct 2008 17:49:38 -0000
@@ -650,10 +650,6 @@ static struct umass_devdescr_t umass_dev
UMASS_PROTO_SCSI | UMASS_PROTO_BBB,
IGNORE_RESIDUE | NO_START_STOP
},
- { USB_VENDOR_SAMSUNG, USB_PRODUCT_SAMSUNG_YP_U2, RID_WILDCARD,
- UMASS_PROTO_SCSI | UMASS_PROTO_BBB,
- SHUTTLE_INIT | NO_GETMAXLUN
- },
{ USB_VENDOR_SAMSUNG_TECHWIN, USB_PRODUCT_SAMSUNG_TECHWIN_DIGIMAX_410,
RID_WILDCARD,
UMASS_PROTO_SCSI | UMASS_PROTO_BBB,
NO_INQUIRY
Index: sys/dev/usb/usbdevs
===================================================================
RCS file: /home/ncvs/src/sys/dev/usb/usbdevs,v
retrieving revision 1.328.2.18
diff -u -p -r1.328.2.18 usbdevs
--- sys/dev/usb/usbdevs 28 Aug 2008 14:20:58 -0000 1.328.2.18
+++ sys/dev/usb/usbdevs 9 Oct 2008 17:55:09 -0000
@@ -1989,7 +1989,6 @@ product SAGEM XG76NA 0x0062 XG-76NA
/* Samsung products */
product SAMSUNG ML6060 0x3008 ML-6060 laser printer
-product SAMSUNG YP_U2 0x5050 YP-U2 MP3 Player
product SAMSUNG I500 0x6601 I500 Palm USB Phone
/* Samsung Techwin products */
--- umass.diff ends here ---
>Release-Note:
>Audit-Trail:
>Unformatted:
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