On 09/02/2015 12:04, Rafe DiDomenico wrote:
Hi all,
So I sort of messed up and picked up this scanner. Now I#m debating
whether to return it or not. If there's hope for support in the (not
so distant) future, I'll hold off and wait. I'm just touching base to
see what sort of prospects there are since this model isn't even
listed as "unsupported" on the website.
Anyway, if anyone needs any info on it this was SANE gave me:
<device descriptor of 0x04a9/0x190f at 002:002 (Canon CanoScan)>
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 255
bDeviceSubClass 255
bDeviceProtocol 255
bMaxPacketSize0 64
idVendor 0x04A9
idProduct 0x190F
bcdDevice 7.04
iManufacturer 1 (Canon)
iProduct 2 (CanoScan)
iSerialNumber 0 ()
bNumConfigurations 1
<configuration 0>
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0 ()
bmAttributes 160 (Remote Wakeup)
MaxPower 500 mA
<interface 0>
<altsetting 0>
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255
bInterfaceSubClass 255
bInterfaceProtocol 255
iInterface 0 ()
<endpoint 0>
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 (in 0x01)
bmAttributes 2 (bulk)
wMaxPacketSize 512
bInterval 0 ms
bRefresh 0
bSynchAddress 0
<endpoint 1>
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 (out 0x02)
bmAttributes 2 (bulk)
wMaxPacketSize 512
bInterval 0 ms
bRefresh 0
bSynchAddress 0
<endpoint 2>
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 (in 0x03)
bmAttributes 3 (interrupt)
wMaxPacketSize 1
bInterval 8 ms
bRefresh 0
bSynchAddress 0
<trying to find out which USB chip is used>
checking for GT-6801 ...
this is not a GT-6801 (bcdUSB = 0x200)
checking for GT-6816 ...
this is not a GT-6816 (bDeviceClass = 255, bInterfaceClass = 255)
checking for GLxxx ...
this is not a GL646 (bDeviceClass = 255, bInterfaceClass = 255)
<This USB chip looks like a GL848+ (result from sane-backends 1.0.24)>
found USB scanner (vendor=0x04a9 [Canon], product=0x190f [CanoScan],
chip=GL848+) at libusb:002:002
Hello,
I have just received a Canon LiDE 220 donated by Dany Qumsiyeh.
Many thanks to him. Now I'm able to start working on this scanner.
First tests show that this model operates like previous LiDE 2[01]0
models, on an undocumented (maybe gl127) ASIC.
Since I now only have Windows 7 machines, I can't use usnsniff, and
must adapt my decoding scripts to wireshark USB recording.
I am going to build some sample tests programs based on log
sniffing, without public datasheet this will be surely more complicated
and longer than working with previous genesys ASIC. Once simple
operations worked out, I'll turned it into a backend.
This is going to take quite some time.
Regards,
Stef
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