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Re: [Spca50x-devs] CPen driver development / raw image format




On 05/23/2009 09:34 PM, Stefan Below wrote:
> Hello,
>
> i have a nice penscanner (CPEN-20, like Iris pen) and i am trying to
> write a driver for it.
> Everything runs fine, except that i have no clue what kind of image
> format i receive.
>
> The penscanner has a little camera (i think its only gray or bw camera).
>
> additional technical informations from the CPEN website:
> Image Resolution: Grayscale 330 DPI
> Scan Area Size: 10 x 6 mm
>

This list isn't very active anymore these days. I think a better place to
send this mail would be linux-media@xxxxxxxxxxxxxxx

Regards,

Hans

>
>
> Here is the first part from the transfered image (cutout from usb-sniff
> output):
> [547050 ms] <<< URB 499 coming back <<< --
> URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER:
> PipeHandle = 88a69984 [endpoint 0x00000082]
> TransferFlags = 00000003 (USBD_TRANSFER_DIRECTION_IN,
> USBD_SHORT_TRANSFER_OK)
> TransferBufferLength = 000001ee
> TransferBuffer = 88be9be0
> TransferBufferMDL = 889b77a8
> 00000000: 02 01 08 01 00 20 23 78 b5 20 00 00 00 00 80 00
> 00000010: 50 00 03 00 d8 01 80 71 f1 ff df ff 88 11 51 f1
> 00000020: ff df ff 88 71 f2 ff cf ff f8 ff ff 0f ff f8 ff
> 00000030: ff 0f ff f8 ff ff 0f ff f8 ff ff 0f ff f8 ff ff
> 00000040: 0f ff f8 12 18 25 ff bf ff f8 12 ff ff fc 8f 2f
> 00000050: f1 ff cf ff 18 f1 ff ff fd 8f 18 ff ff 6f ff f8
> 00000060: ff ff 0f ff f8 ff ff 0f ff f8 ff ff 0f ff 28 c2
> 00000070: 44 54 53 f1 ff f3 8f 1f 81 71 62 f2 ff f2 8f 1f
> 00000080: f1 1a ff 2f ff 88 f1 15 ff ff f0 8f ff ff ff f0
> 00000090: 8f ff ff ff f0 8f 1f f2 ff cf ff f8 ff 11 ff fd
> 000000a0: 8f 1f 31 a1 82 51 f1 cf ff f8 1a ff ff f4 8f ff
> 000000b0: 1d ff 1f ff f8 ff ff 0f ff f8 ff ff 0f ff f8 ff
> 000000c0: ff 0f ff f8 ff ff 0f ff f8 ff ff 0f ff f8 ff ff
> 000000d0: 0f ff f8 ff ff 0f ff f8 ff ff 0f ff a8 f1 ff ff
> 000000e0: f4 8f ff ff ff f0 8f ff ff ff f0 8f ff ff ff f0
> 000000f0: 8f ff ff ff f0 8f ff ff ff f0 8f ff ff ff f0 8f
> 00000100: ff ff ff f0 8f ff ff ff f0 8f ff ff ff f0 8f ff
> 00000110: ff ff f0 8f ff ff ff f0 8f ff ff ff f0 8f ff ff
> 00000120: ff f0 8f ff ff ff f0 9f ff ff ef ff fa ff ff fd
> 00000130: 8f 13 14 ff ff 6f ff f8 ff ff 0f ff f9 ff ff fe
> 00000140: 8f ff ff ff f0 8f 12 ff ff cf ff 88 f1 ff ff f6
> 00000150: 8f 13 14 ff ff 6f ff 28 f2 ff ff fb 8f 22 ff ff
> 00000160: bf ff f9 ff ff fe bf 11 23 ff ff 5f ff 3d 21 f1
> 00000170: ff ff f3 cf 12 51 14 ff ff fc 8f 42 32 16 ff ff
> 00000180: fc ff 44 f3 ff cf ff 2d 26 f3 ff cf ff 0f 41 33
> 00000190: 11 0f f1 ff f9 cf 64 12 22 13 ff ff f5 cf 12 41
> 000001a0: 14 12 16 ff ff f3 df 11 41 23 ff ff fd df 33 ff
> 000001b0: ff 4f ff 3d 22 31 f1 ff df ff 3d 92 f2 ff 9f ff
> 000001c0: 3d 35 21 81 f1 ff 1f ff 2e 12 41 22 41 f2 ff 3f
> 000001d0: ff 1d 11 44 27 f3 ff 2f ff 1d 11 32 21 65 32 f1
> 000001e0: ff fc ff 27 13 31 31 61 f1 ff f9 8f f1 ff
> UrbLink = 00000000
> [547050 ms] UsbSnoop - DispatchAny(b5572610) :
> IRP_MJ_INTERNAL_DEVICE_CONTROL
>
> The first 0x16 bytes should be a header.
>
> I attached the image output from windows and the whole usb sniff logfile.
>
>
> I hope someone can help me to :-)
>
> Stefan
>
>
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>
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Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT
is a gathering of tech-side developers & brand creativity professionals. Meet
the minds behind Google Creative Lab, Visual Complexity, Processing, & 
iPhoneDevCamp asthey present alongside digital heavyweights like Barbarian
Group, R/GA, & Big Spaceship. http://www.creativitycat.com 
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