hi! this is a short example of the protocol i have obtained with usb_snoopy there are a lot of istruction like these befor the "read_scan_data"
00000000 0.00000000 UsbSnoop - IRP_MJ_INTERNAL_DEVICE_CONTROL,=20 IOCTL_INTERNAL_USB_SUBMIT_URB=09 00000001 0.00002039 =09 00000002 0.00002654 >>>>>>> URB 2162 going down...=09 00000003 0.00003799 -- URB_FUNCTION_VENDOR_DEVICE:=09 00000004 0.00005140 TransferFlags =3D 00000000=20 (USBD_TRANSFER_DIRECTION_OUT, ~USBD_SHORT_TRANSFER_OK)=09 00000005 0.00006118 TransferBufferLength =3D 00000001=09 00000006 0.00007180 TransferBuffer =3D 8181bf08=09 00000007 0.00008018 TransferBufferMDL =3D 00000000=09 00000008 0.00008828 =09 00000009 0.00010783 0000: 41 =09 00000010 0.00011622 UrbLink =3D 00000000=09 00000011 0.00012488 RequestTypeReservedBits =3D 40=09 00000012 0.00013326 Request =3D 0c=09 00000013 0.00014164 Value =3D 0083=09 00000014 0.00015114 Index =3D 0000=09 00000015 0.00411477 =09 00000016 0.00412091 <<<<<<< URB 2162 coming back...=09 00000017 0.00413237 -- URB_FUNCTION_CONTROL_TRANSFER:=09 00000018 0.00414271 PipeHandle =3D 813c7574=09 00000019 0.00415360 TransferFlags =3D 00000002=20 (USBD_TRANSFER_DIRECTION_OUT, USBD_SHORT_TRANSFER_OK)=09 00000020 0.00416282 TransferBufferLength =3D 00000001=09 00000021 0.00417204 TransferBuffer =3D 8181bf08=09 00000022 0.00418126 TransferBufferMDL =3D 813b0e68=09 00000023 0.00419076 UrbLink =3D 00000000=09 00000024 0.00425976 SetupPacket : 40 0c 83 00 00 00 01 00 =09 00000025 0.00431004 UsbSnoop - IRP_MJ_INTERNAL_DEVICE_CONTROL,=20 IOCTL_INTERNAL_USB_SUBMIT_URB=09 i need some help for understand what is "urb", the meaning of >>>>>> and=20 <<<<<< (i think it's direction of messages in or out...), ..., ..., ..., et= c.=20 the logs are very long :) (making a preview of scannig the log is about 17M= b=20 and then with real scanning the log is about 7Mb) on 10x10(cm) of area... i hope i'm on the right way, but i'm confused too thanks=20 Gnawa Alle 08:39, venerd=EC 4 luglio 2003, Henning Meier-Geinitz ha scritto: > Hi, > > On Fri, Jul 04, 2003 at 01:20:12AM +0200, gnawa wrote: > > i have logged under windows 2k,using usb_snoopy, the messages between t= he > > driver and the scanner (hp scanjet 2300c) with the intention of write a > > backend for my scanner... but now i don't know the next step... > > i have made it because there are no information about chipset... > > there is anyone who can help me? > > Analyze it. Find out, how the protocol works. Are commands used or > registers? At which time which command is used? E.g. if a command is > used multiple times during the actual scan and returns lots of data it's > most probably the "read_scan_data" command (or however you want to > name it). A command that is used only once immediately beforet he scan > may be the "start_scan" command. > > Putting the usb snoopy logs somewhere on a web site might also help. > Maybe someone recognizes a pattern or has seen that protocol before? > > Bye, > Henning > _______________________________________________ > Sane-devel mailing list > sane-de...@www.mostang.com > http://www.mostang.com/mailman/listinfo/sane-devel
