[sane-devel] A keychain digital picture frame. (fwd)

Tue Jan 6 18:43:32 UTC 2009

Gerard,

Here is the first post to usb-storage. It contains the dmesg output and 
the /proc/bus/devices output. If you like, you can add this to your 
collection of information about the similar devices.

Theodore Kilgore

---------- Forwarded message ----------
Date: Thu, 1 Jan 2009 21:34:00 -0600 (CST)
From: kilgota at banach.math.auburn.edu
To: usb-storage at lists.one-eyed-alien.net
Subject: A keychain digital picture frame.

I wonder if anyone has ever encountered something like this. If not, then it is 
a curious little thing, It is a small digital picture frame which will hold 
something like 40 or 45 JPEG photos and display them in a little window, which 
is about (by eyeball measurement) 50 mm wide and 30 mm tall. There is a 
primitive operating system on it which can let one scroll through the pictures 
and pull one of them up to admire. It also has a clock and can display the date 
and time instead of an image. That is about all that it will do.

When plugged in, it says it is a mass storage device but comes up as an sg 
device, not an sd device:

usb-storage: device found at 19
usb-storage: waiting for device to settle before scanning
usb 5-3: New USB device found, idVendor=1130, idProduct=6801
usb 5-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 5-3: Product: TP-6801 USB Chip
usb 5-3: Manufacturer:      technology, inc.
usb 5-3: SerialNumber: General Purpose USB
scsi 5:0:0:0: CD-ROM            Insignia NS-DKEYXX09           PQ: 0 ANSI: 2
scsi 5:0:0:0: Attached scsi generic sg1 type 5
usb-storage: device scan complete

proc/bus/usb/devices has the following additional information:

T:  Bus=05 Lev=01 Prnt=01 Port=02 Cnt=02 Dev#= 19 Spd=12  MxCh= 0
D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=1130 ProdID=6801 Rev= 2.e2
S:  Manufacturer=     technology, inc.
S:  Product=TP-6801 USB Chip
S:  SerialNumber=General Purpose USB
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E:  Ad=81(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=83(I) Atr=03(Int.) MxPS=   8 Ivl=255ms

Now, according to the manual the way it is supposed to work is that one plugs 
it into a WinXP or Vista box and "The picture editing software starts on your 
computer ..."

Said "picture editing software" will permit one to copy new images onto the 
device or to remove images which are on the device.

I tried plugging it up with a computer running Vista. The above is, indeed, 
exactly what happens. The "autorun" button comes up, and when clicking it one 
gets said program to open, and the program seems to work. I successfully made a 
snoop log of one photo being moved over to the device. Indeed, it appears to be 
using Mass Storage Bulk Transport commands. The log is rather nasty to read, 
though, because everything is echoed, apparently due to the device being quite 
slow.

However, before I opened that program I went into "computer" which also saw the 
strange creature as an external mass storage device and gave it a drive letter. 
When I clicked on "properties" it said that it is a drive, but it is completely 
full.

An interesting, but admittedly not terribly important piece of hardware.

Has anyone encountered something which seems to work similarly? Comments?

Theodore Kilgore