[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
--
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https://bugs.launchpad.net/bugs/630568
Title:
Zoran zr364xx connect and disconnect problems
Status in “linux” package in Ubuntu:
Expired
Bug description:
APPLIES TO
Kernel 2.6.32-24-generic Ubuntu Release 10.04 for Netbook. The same problems
occure on Kernel 2.6.32-24-generic Ubuntu Release 10.04 and Ubuntu Release
8.04.3 on Live CD.
The zr364xx driver has the following problems:-
1. After connecting as a USB Storage device, unplugging without unmounting
crashes the camcorder.
2. Webcam functionality does not work at all.
DETAIL - I've delimited relevant sections from syslog with ==========
1)
When plugging a camcorder into USB the following appears in the syslog
==========
Sep 5 03:38:42 localhost kernel: [34514.876576] usb 1-1: new high speed USB
device using ehci_hcd and address 3
Sep 5 03:38:42 localhost kernel: [34515.024583] hub 1-0:1.0: unable to
enumerate USB device on port 1
Sep 5 03:38:49 localhost kernel: [34521.648618] usb 1-1: new high speed USB
device using ehci_hcd and address 4
Sep 5 03:38:49 localhost kernel: [34521.781953] usb 1-1: configuration #1
chosen from 1 choice
Sep 5 03:38:49 localhost kernel: [34522.080732] Initializing USB Mass
Storage driver...
==========
The camcorder requires a selection be made on the device choosing to connect
as a USB storage device or a webcam. Choosing USB storage device appears to
works fine. The camcorder also connects as a CDROM which contails the windows
driver install files.
==========
Sep 5 11:12:05 localhost kernel: [ 2432.486678] scsi6 : SCSI emulation for
USB Mass Storage devices
Sep 5 11:12:05 localhost kernel: [ 2432.487397] usb-storage: device found at
4
Sep 5 11:12:05 localhost kernel: [ 2432.487408] usb-storage: waiting for
device to settle before scanning
Sep 5 11:12:05 localhost kernel: [ 2432.487469] usbcore: registered new
interface driver usb-storage
Sep 5 11:12:05 localhost kernel: [ 2432.487483] USB Mass Storage support
registered.
Sep 5 11:12:10 localhost kernel: [ 2437.505674] usb-storage: device scan
complete
Sep 5 11:12:10 localhost kernel: [ 2437.514505] scsi 6:0:0:0: Direct-Access
ZORAN COACH6 (I62) 1.10 PQ: 0 ANSI: 0 CCS
Sep 5 11:12:10 localhost kernel: [ 2437.522124] scsi 6:0:0:1: CD-ROM
ZORAN COACH6 (I62) 1.10 PQ: 0 ANSI: 0 CCS
Sep 5 11:12:10 localhost kernel: [ 2437.533122] sd 6:0:0:0: Attached scsi
generic sg1 type 0
Sep 5 11:12:10 localhost kernel: [ 2437.543941] sr0: scsi3-mmc drive: 0x/0x
caddy
Sep 5 11:12:10 localhost kernel: [ 2437.543954] Uniform CD-ROM driver
Revision: 3.20
Sep 5 11:12:10 localhost kernel: [ 2437.545255] sr 6:0:0:1: Attached scsi
CD-ROM sr0
Sep 5 11:12:10 localhost kernel: [ 2437.548345] sr 6:0:0:1: Attached scsi
generic sg2 type 5
Sep 5 11:12:10 localhost kernel: [ 2437.550573] sd 6:0:0:0: [sdb] 3913728
512-byte logical blocks: (2.00 GB/1.86 GiB)
Sep 5 11:12:10 localhost kernel: [ 2437.552948] sd 6:0:0:0: [sdb] Write
Protect is off
Sep 5 11:12:10 localhost kernel: [ 2437.552960] sd 6:0:0:0: [sdb] Mode
Sense: 00 06 00 00
Sep 5 11:12:10 localhost kernel: [ 2437.552968] sd 6:0:0:0: [sdb] Assuming
drive cache: write through
Sep 5 11:12:10 localhost kernel: [ 2437.554941] sd 6:0:0:0: [sdb] Assuming
drive cache: write through
Sep 5 11:12:10 localhost kernel: [ 2437.554957] sdb: sdb1
Sep 5 11:12:10 localhost kernel: [ 2437.560974] sd 6:0:0:0: [sdb] Assuming
drive cache: write through
Sep 5 11:12:10 localhost kernel: [ 2437.560992] sd 6:0:0:0: [sdb] Attached
SCSI disk
Sep 5 11:12:10 localhost kernel: [ 2437.592940] sr0: Hmm, seems the drive
doesn't support multisession CD's
Sep 5 11:12:10 localhost kernel: [ 2437.980919] ISO 9660 Extensions:
Microsoft Joliet Level 1
============
However, upon disconnect the camcorder freezes and can only be reset by
taking out the battery. This does not happen on Windows XP. Everything works
fine. It also does not seem to happen if you unmount the device and wait a few
seconds before unplugging.
2)
When reconnected and the webcam connection option is selected, the following
error occurs
============
Sep 5 11:25:28 localhost kernel: [ 3235.788195] usb 1-1: new high speed USB
device using ehci_hcd and address 9
Sep 5 11:25:28 localhost kernel: [ 3235.921973] usb 1-1: configuration #1
chosen from 1 choice
Sep 5 11:25:28 localhost kernel: [ 3235.923760] usb-storage: probe of
1-1:1.0 failed with error -5
Sep 5 11:25:28 localhost kernel: [ 3235.993308] zr364xx 1-1:1.0: Zoran 364xx
compatible webcam plugged
Sep 5 11:25:28 localhost kernel: [ 3235.993321] zr364xx 1-1:1.0: model
0595:4343 detected
Sep 5 11:25:28 localhost kernel: [ 3235.993332] usb 1-1: 320x240 mode
selected
Sep 5 11:25:28 localhost kernel: [ 3235.993757] usb 1-1: Zoran 364xx
controlling video device 1
Sep 5 11:25:28 localhost kernel: [ 3235.993833] usbcore: registered new
interface driver zr364xx
Sep 5 11:25:28 localhost kernel: [ 3235.994445] zr364xx: Zoran 364xx
Sep 5 11:25:29 localhost kernel: [ 3236.624789] usb 1-1: Failed sending
control message, error -110.
Sep 5 11:25:29 localhost kernel: [ 3236.624804] usb 1-1: error during open
sequence: 5
============
The device does not appear as an available webcam in any application. The
module does appear to load. This is from lsmod
============
Module Size Used by
zr364xx 17893 0
videobuf_vmalloc 5586 1 zr364xx
videobuf_core 16356 2 zr364xx,videobuf_vmalloc
....
videodev 34361 2 zr364xx,uvcvideo
============
When disconnected a bug appears in the syslog related to a kernel NULL
pointer dereference
============
Sep 5 11:31:28 localhost kernel: [ 3596.003568] usb 1-1: USB disconnect,
address 9
Sep 5 11:31:28 localhost kernel: [ 3596.008557] BUG: unable to handle kernel
NULL pointer dereference at (null)
Sep 5 11:31:28 localhost kernel: [ 3596.008578] IP: [<c058bcfa>]
__mutex_lock_slowpath+0x8a/0x130
Sep 5 11:31:28 localhost kernel: [ 3596.008603] *pde = 00000000
Sep 5 11:31:28 localhost kernel: [ 3596.008613] Oops: 0002 [#1] SMP
Sep 5 11:31:28 localhost kernel: [ 3596.008623] last sysfs file:
/sys/devices/pci0000:00/0000:00:04.1/usb1/1-1/1-1:1.0/uevent
Sep 5 11:31:28 localhost kernel: [ 3596.008634] Modules linked in: zr364xx
videobuf_vmalloc videobuf_core nls_iso8859_1 nls_cp437 vfat fat nls_utf8 isofs
usb_storage michael_mic arc4 binfmt_misc ppdev snd_hda_codec_nvhdmi
snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss
snd_mixer_oss snd_pcm fbcon tileblit font bitblit softcursor snd_seq_dummy
vga16fb snd_seq_oss lib80211_crypt_tkip snd_seq_midi snd_rawmidi
snd_seq_midi_event snd_seq snd_timer snd_seq_device snd qcserial nvidia(P)
uvcvideo vgastate soundcore psmouse wl(P) usbserial videodev v4l1_compat
serio_raw snd_page_alloc shpchp lib80211 agpgart i2c_nforce2 video output lp
parport forcedeth ahci
Sep 5 11:31:28 localhost kernel: [ 3596.008785]
Sep 5 11:31:28 localhost kernel: [ 3596.008797] Pid: 30, comm: khubd
Tainted: P (2.6.32-24-generic #42-Ubuntu) HP Mini 311-1000
Sep 5 11:31:28 localhost kernel: [ 3596.008808] EIP: 0060:[<c058bcfa>]
EFLAGS: 00010246 CPU: 1
Sep 5 11:31:28 localhost kernel: [ 3596.008819] EIP is at
__mutex_lock_slowpath+0x8a/0x130
Sep 5 11:31:28 localhost kernel: [ 3596.008828] EAX: 00000000 EBX: d934a4a4
ECX: d934a4ac EDX: f68b1db4
Sep 5 11:31:28 localhost kernel: [ 3596.008837] ESI: d934a4a8 EDI: d934a4b4
EBP: f68b1dcc ESP: f68b1da8
Sep 5 11:31:28 localhost kernel: [ 3596.008846] DS: 007b ES: 007b FS: 00d8
GS: 00e0 SS: 0068
Sep 5 11:31:28 localhost kernel: [ 3596.008856] Process khubd (pid: 30,
ti=f68b0000 task=f68a8000 task.ti=f68b0000)
Sep 5 11:31:28 localhost kernel: [ 3596.008864] Stack:
Sep 5 11:31:28 localhost kernel: [ 3596.008869] ec324ed0 d934a4ac f68a8000
d934a4ac 00000000 00002fb2 d934a4a4 c4801e00
Sep 5 11:31:28 localhost kernel: [ 3596.008891] <0> d934a400 f68b1ddc
c058bc55 d934a4a4 c4801e00 f68b1dec f82f85a9 c4801e1c
Sep 5 11:31:28 localhost kernel: [ 3596.008914] <0> c4801e00 f68b1e0c
f830d26d c04485c1 00000000 dfb7b800 c4801e00 c4801e1c
Sep 5 11:31:28 localhost kernel: [ 3596.008939] Call Trace:
Sep 5 11:31:28 localhost kernel: [ 3596.008952] [<c058bc55>] ?
mutex_lock+0x25/0x40
Sep 5 11:31:28 localhost kernel: [ 3596.008971] [<f82f85a9>] ?
videobuf_mmap_free+0x19/0x40 [videobuf_core]
Sep 5 11:31:28 localhost kernel: [ 3596.008987] [<f830d26d>] ?
zr364xx_disconnect+0x2d/0x70 [zr364xx]
Sep 5 11:31:28 localhost kernel: [ 3596.009002] [<c04485c1>] ?
usb_disable_interface+0x41/0x60
Sep 5 11:31:28 localhost kernel: [ 3596.009015] [<c044b759>] ?
usb_unbind_interface+0xe9/0x130
Sep 5 11:31:28 localhost kernel: [ 3596.009031] [<c03e7a71>] ?
__device_release_driver+0x51/0xb0
Sep 5 11:31:28 localhost kernel: [ 3596.009043] [<c03e7b95>] ?
device_release_driver+0x25/0x40
Sep 5 11:31:28 localhost kernel: [ 3596.009056] [<c03e6e4b>] ?
bus_remove_device+0x7b/0xa0
Sep 5 11:31:28 localhost kernel: [ 3596.009069] [<c03e52c7>] ?
device_del+0xf7/0x180
Sep 5 11:31:28 localhost kernel: [ 3596.009081] [<c0448505>] ?
usb_disable_device+0x85/0x100
Sep 5 11:31:28 localhost kernel: [ 3596.009095] [<c0442f9e>] ?
usb_disconnect+0x9e/0x120
Sep 5 11:31:28 localhost kernel: [ 3596.009109] [<c04434fb>] ?
hub_port_connect_change+0x8b/0x850
Sep 5 11:31:28 localhost kernel: [ 3596.009122] [<c0449145>] ?
usb_control_msg+0xd5/0x130
Sep 5 11:31:28 localhost kernel: [ 3596.009135] [<c0440f50>] ?
clear_port_feature+0x50/0x60
Sep 5 11:31:28 localhost kernel: [ 3596.009149] [<c0444465>] ?
hub_events+0x1f5/0x510
Sep 5 11:31:28 localhost kernel: [ 3596.009164] [<c016797f>] ?
finish_wait+0x4f/0x70
Sep 5 11:31:28 localhost kernel: [ 3596.009176] [<c04447ba>] ?
hub_thread+0x3a/0x140
Sep 5 11:31:28 localhost kernel: [ 3596.009188] [<c0167810>] ?
autoremove_wake_function+0x0/0x50
Sep 5 11:31:28 localhost kernel: [ 3596.009201] [<c0444780>] ?
hub_thread+0x0/0x140
Sep 5 11:31:28 localhost kernel: [ 3596.009212] [<c0167584>] ?
kthread+0x74/0x80
Sep 5 11:31:28 localhost kernel: [ 3596.009224] [<c0167510>] ?
kthread+0x0/0x80
Sep 5 11:31:28 localhost kernel: [ 3596.009238] [<c0104087>] ?
kernel_thread_helper+0x7/0x10
Sep 5 11:31:28 localhost kernel: [ 3596.009245] Code: 18 63 7f bd 90 8d 74
26 00 8d 73 04 89 f0 e8 de 11 00 00 8d 55 e8 8d 43 08 89 45 e0 8b 43 0c 89 53
0c 8b 4d e0 89 45 ec 89 4d e8 <89> 10 8b 45 e4 ba ff ff ff ff 89 45 f0 89 d0 87
03 83 f8 01 74
Sep 5 11:31:28 localhost kernel: [ 3596.009371] EIP: [<c058bcfa>]
__mutex_lock_slowpath+0x8a/0x130 SS:ESP 0068:f68b1da8
Sep 5 11:31:28 localhost kernel: [ 3596.009388] CR2: 0000000000000000
Sep 5 11:31:28 localhost kernel: [ 3596.009398] ---[ end trace
7f1d85421ba47295 ]---
============
The module does not appear to be removed and attempts to remove it with
module -r zr364xx just hang. The only way I could get it out of there was with
a reboot.
I've tested this on Ubuntu 10.04 for Desktop, 10.04 for Netbook and 8.04 Live
CD and I get the same results. The syslog output is below.
============
Sep 5 00:26:40 ubuntu kernel: [ 744.713782] usb 3-6: new high speed USB
device using ehci_hcd and address 4
Sep 5 00:26:56 ubuntu kernel: [ 760.157999] usb 2-3: new full speed USB
device using ohci_hcd and address 4
Sep 5 00:26:56 ubuntu kernel: [ 760.358453] usb 2-3: not running at top
speed; connect to a high speed hub
Sep 5 00:26:56 ubuntu NetworkManager: <debug> [1283646416.319083]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/usb_device_595_4343_ZORAN00000001').
Sep 5 00:26:56 ubuntu kernel: [ 760.376634] usb 2-3: configuration #1
chosen from 1 choice
Sep 5 00:26:56 ubuntu kernel: [ 760.411720] usb-storage: probe of 2-3:1.0
failed with error -5
Sep 5 00:26:56 ubuntu kernel: [ 760.676167]
/build/buildd/linux-2.6.24/drivers/media/video/zr364xx.c: Zoran 364xx
compatible webcam plugged
Sep 5 00:26:56 ubuntu kernel: [ 760.676179]
/build/buildd/linux-2.6.24/drivers/media/video/zr364xx.c: model 0595:4343
detected
Sep 5 00:26:56 ubuntu kernel: [ 760.676836]
/build/buildd/linux-2.6.24/drivers/media/video/zr364xx.c: 320x240 mode selected
Sep 5 00:26:56 ubuntu kernel: [ 760.677132]
/build/buildd/linux-2.6.24/drivers/media/video/zr364xx.c: Zoran 364xx
controlling video device 1
Sep 5 00:26:56 ubuntu kernel: [ 760.677414] usbcore: registered new
interface driver zr364xx
Sep 5 00:26:56 ubuntu kernel: [ 760.677619]
/build/buildd/linux-2.6.24/drivers/media/video/zr364xx.c: Zoran 364xx module
loaded
Sep 5 00:26:56 ubuntu NetworkManager: <debug> [1283646416.644357]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/usb_device_595_4343_ZORAN00000001_if0').
Sep 5 00:30:27 ubuntu kernel: [ 971.827686]
/build/buildd/linux-2.6.24/drivers/media/video/zr364xx.c: Failed sending
control message, error -110.
Sep 5 00:30:27 ubuntu kernel: [ 971.827697]
/build/buildd/linux-2.6.24/drivers/media/video/zr364xx.c: error during open
sequence: 5
Sep 5 00:37:22 ubuntu kernel: [ 1386.191429] usb 2-3: USB disconnect,
address 4
Sep 5 00:37:22 ubuntu kernel: [ 1386.191712]
/build/buildd/linux-2.6.24/drivers/media/video/zr364xx.c: Zoran 364xx webcam
unplugged
Sep 5 00:37:22 ubuntu NetworkManager: <debug> [1283647042.452881]
nm_hal_device_removed(): Device removed (hal udi is
'/org/freedesktop/Hal/devices/usb_device_595_4343_ZORAN00000001_if0').
Sep 5 00:37:22 ubuntu NetworkManager: <debug> [1283647042.465850]
nm_hal_device_removed(): Device removed (hal udi is
'/org/freedesktop/Hal/devices/usb_device_595_4343_ZORAN00000001').
Sep 5 00:37:45 ubuntu kernel: [ 1409.638547] usb 3-6: new high speed USB
device using ehci_hcd and address 5
Sep 5 00:38:01 ubuntu kernel: [ 1425.082744] usb 2-3: new full speed USB
device using ohci_hcd and address 5
Sep 5 00:38:01 ubuntu kernel: [ 1425.282809] usb 2-3: not running at top
speed; connect to a high speed hub
Sep 5 00:38:01 ubuntu kernel: [ 1425.300973] usb 2-3: configuration #1
chosen from 1 choice
Sep 5 00:38:01 ubuntu NetworkManager: <debug> [1283647081.579835]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/usb_device_595_2002_ZORAN01234567').
Sep 5 00:38:01 ubuntu kernel: [ 1425.338825] scsi6 : SCSI emulation for USB
Mass Storage devices
Sep 5 00:38:01 ubuntu kernel: [ 1425.340676] usb-storage: device found at 5
Sep 5 00:38:01 ubuntu kernel: [ 1425.340684] usb-storage: waiting for device
to settle before scanning
Sep 5 00:38:01 ubuntu NetworkManager: <debug> [1283647081.694792]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/usb_device_595_2002_ZORAN01234567_if0').
Sep 5 00:38:06 ubuntu kernel: [ 1430.364105] usb-storage: device scan
complete
Sep 5 00:38:06 ubuntu kernel: [ 1430.375828] scsi 6:0:0:0: Direct-Access
ZORAN COACH6 (I62) 1.10 PQ: 0 ANSI: 0 CCS
Sep 5 00:38:06 ubuntu kernel: [ 1430.386801] scsi 6:0:0:1: CD-ROM
ZORAN COACH6 (I62) 1.10 PQ: 0 ANSI: 0 CCS
Sep 5 00:38:06 ubuntu kernel: [ 1430.405817] sd 6:0:0:0: [sdg] 3913728
512-byte hardware sectors (2004 MB)
Sep 5 00:38:06 ubuntu kernel: [ 1430.412792] sd 6:0:0:0: [sdg] Write Protect
is off
Sep 5 00:38:06 ubuntu kernel: [ 1430.412806] sd 6:0:0:0: [sdg] Mode Sense:
00 06 00 00
Sep 5 00:38:06 ubuntu kernel: [ 1430.412810] sd 6:0:0:0: [sdg] Assuming
drive cache: write through
Sep 5 00:38:06 ubuntu kernel: [ 1430.423790] sd 6:0:0:0: [sdg] 3913728
512-byte hardware sectors (2004 MB)
Sep 5 00:38:06 ubuntu kernel: [ 1430.430767] sd 6:0:0:0: [sdg] Write Protect
is off
Sep 5 00:38:06 ubuntu kernel: [ 1430.430780] sd 6:0:0:0: [sdg] Mode Sense:
00 06 00 00
Sep 5 00:38:06 ubuntu kernel: [ 1430.430784] sd 6:0:0:0: [sdg] Assuming
drive cache: write through
Sep 5 00:38:06 ubuntu kernel: [ 1430.430796] sdg: sdg1
Sep 5 00:38:06 ubuntu kernel: [ 1430.440971] sd 6:0:0:0: [sdg] Attached SCSI
disk
Sep 5 00:38:06 ubuntu kernel: [ 1430.441048] sd 6:0:0:0: Attached scsi
generic sg7 type 0
Sep 5 00:38:06 ubuntu kernel: [ 1430.451758] sr1: scsi3-mmc drive: 0x/0x
caddy
Sep 5 00:38:06 ubuntu kernel: [ 1430.451878] sr 6:0:0:1: Attached scsi
CD-ROM sr1
Sep 5 00:38:06 ubuntu kernel: [ 1430.451947] sr 6:0:0:1: Attached scsi
generic sg8 type 5
Sep 5 00:38:06 ubuntu NetworkManager: <debug> [1283647086.821382]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/usb_device_595_2002_ZORAN01234567_if0_scsi_host').
Sep 5 00:38:06 ubuntu NetworkManager: <debug> [1283647086.832525]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/usb_device_595_2002_ZORAN01234567_if0_scsi_host_scsi_device_lun0').
Sep 5 00:38:06 ubuntu NetworkManager: <debug> [1283647086.897211]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/usb_device_595_2002_ZORAN01234567_if0_scsi_host_scsi_device_lun0_scsi_generic').
Sep 5 00:38:06 ubuntu NetworkManager: <debug> [1283647086.941325]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/usb_device_595_2002_ZORAN01234567_if0_scsi_host_scsi_device_lun1').
Sep 5 00:38:06 ubuntu kernel: [ 1430.696633] sr1: Hmm, seems the drive
doesn't support multisession CD's
Sep 5 00:38:06 ubuntu NetworkManager: <debug> [1283647086.981470]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/usb_device_595_2002_ZORAN01234567_if0_scsi_host_scsi_device_lun1_scsi_generic').
Sep 5 00:38:07 ubuntu NetworkManager: <debug> [1283647087.486961]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/storage_serial_ZORAN_COACH_DSC_ZORAN01234567').
Sep 5 00:38:07 ubuntu NetworkManager: <debug> [1283647087.606372]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/storage_serial_ZORAN_COACH_DSC_ZORAN01234567_0').
Sep 5 00:38:07 ubuntu NetworkManager: <debug> [1283647087.803836]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/volume_part_1_size_4884480').
Sep 5 00:38:08 ubuntu NetworkManager: <debug> [1283647088.074773]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/volume_uuid_3A1E_1F03').
Sep 5 00:38:08 ubuntu hald: mounted /dev/sdg1 on behalf of uid 999
=========
Sep 5 00:42:53 ubuntu hald: unmounted /dev/sdg1 from '/media/NO_NAME' on
behalf of uid 999
=========
Just to be clear, all the functions work fine on windows XP with the Zoran
Couch drivers provided. The camcorder connects and disconnects as a USB Storage
device or a camcorder and works as expected on XP.
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