Get a trace of it working under windows with http://www.pcausa.com/Utilities/UsbSnoop/ (preferred) or with wireshark. I've got some scripts to simplify the usbsnoop output, but you will still spend a bunch of time staring at the logs.
allan On Mon, Aug 27, 2012 at 4:32 PM, Richard Ulrich <ricul77 at gmail.com> wrote: > Hi, > > I just subscribed to this list. > > After asking C-Channel multiple times for a linux driver for their > PayPen family of devices, I decided to buy a cheap one from eBay and see > what I can do myself. > > The USB ID was recognized, but that was about it. > Bus 002 Device 010: ID 0a93:0002 C Technologies AB C-Pen 10 > > This is how it looks: > http://www.wetter.ch/portrait/files/468/00020992-mypen_20.3.03.jpg > > Searching on the internet I found out that there are similar devices, > but none of them seems to be really supported on linux. > http://lists.alioth.debian.org/pipermail/sane-devel/2009-February/024028.html > http://www.sane-project.org/unsupported/c-channel-mypen-pro.html > > Now if I want to give it a try developing a driver, how should I > proceed? > > Rgds > Richard > > Here is the output of $sane-find-scanner -v -v > > This is sane-find-scanner from sane-backends 1.0.22 > > # sane-find-scanner will now attempt to detect your scanner. If the > # result is different from what you expected, first make sure your > # scanner is powered up and properly connected to your computer. > > searching for SCSI scanners: > checking /dev/scanner... failed to open (Invalid argument) > checking /dev/sg0... failed to open (Access to resource has been denied) > ... > checking /dev/sgz... failed to open (Invalid argument) > # No SCSI scanners found. If you expected something different, make > sure that > # you have loaded a kernel SCSI driver for your SCSI adapter. > > searching for USB scanners: > checking /dev/usb/scanner... failed to open (Invalid argument) > ... > checking /dev/usbscanner15... failed to open (Invalid argument) > trying libusb: > > ... > <device descriptor of 0x0a93/0x0002 at 002:010> > bLength 18 > bDescriptorType 1 > bcdUSB 2.00 > bDeviceClass 255 > bDeviceSubClass 0 > bDeviceProtocol 0 > bMaxPacketSize0 8 > idVendor 0x0A93 > idProduct 0x0002 > bcdDevice 1.17 > iManufacturer 1 () > iProduct 2 () > iSerialNumber 3 () > bNumConfigurations 1 > <configuration 0> > bLength 9 > bDescriptorType 2 > wTotalLength 32 > bNumInterfaces 1 > bConfigurationValue 1 > iConfiguration 0 () > bmAttributes 160 (Remote Wakeup) > MaxPower 200 mA > <interface 0> > <altsetting 0> > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 2 > bInterfaceClass 255 > bInterfaceSubClass 0 > bInterfaceProtocol 255 > iInterface 0 () > <endpoint 0> > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x81 (in 0x01) > bmAttributes 3 (interrupt) > wMaxPacketSize 8 > bInterval 1 ms > bRefresh 0 > bSynchAddress 0 > <endpoint 1> > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x82 (in 0x02) > bmAttributes 3 (interrupt) > wMaxPacketSize 64 > bInterval 1 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 GT-8911 ... > this is not a GT-8911 (check 1, bDeviceClass = 255, bInterfaceClass > = 255) > checking for MA-1017 ... > this is not a MA-1017 (bDeviceClass = 255, bInterfaceClass = 255) > checking for MA-1015 ... > this is not a MA-1015 (bcdUSB = 0x200) > checking for MA-1509 ... > this is not a MA-1509 (bcdUSB = 0x200) > checking for LM983[1,2,3] ... > this is not a LM983x (bcdUSB = 0x200) > checking for GL646 ... > this is not a GL646 (bDeviceClass = 255, bInterfaceClass = 255) > checking for GL646_HP ... > this is not a GL646_HP (bcdUSB = 0x200) > checking for GL660+GL646 ... > this is not a GL660+GL646 (bDeviceClass = 255, bInterfaceClass = > 255) > checking for GL84x ... > this is not a GL84x (bDeviceSubClass = 0x0) > checking for ICM532B ... > this is not a ICM532B (check 2, bcdUSB = 0x200) > checking for PV8630/LM9830 ... > this is not a PV8630/LM9830 (bDeviceClass = 255) > checking for M011 ... > this is not a M011 (bcdUSB = 0x200) > checking for RTS8822 ... > this is not a RTS8822 (bDeviceClass = 255) > checking for rts8858c ... > this is not a rts8858c (bDeviceClass = 255) > checking for SQ113 ... > this is not a SQ113 (bDeviceClass = 255) > checking for HP4500C/4570C/5500C/5550C/5590/7650 chipset ... > this is not a HP4500C/4570C/5500C/5550C/5590/7650 chipset > (bDeviceSubClass = 0x0) > checking for rts8801/rts8891 ... > this is not a rts8801/rts8891 (bDeviceClass = 255) > <Couldn't determine the type of the USB chip (result from sane-backends > 1.0.22)> > > found USB scanner (vendor=0x0a93, product=0x0002) at libusb:002:010 > > ... > > # Your USB scanner was (probably) detected. It may or may not be > supported by > # SANE. Try scanimage -L and read the backend's manpage. > > # Not checking for parallel port scanners. > > # Most Scanners connected to the parallel port or other proprietary > ports > # can't be detected by this program. > > # You may want to run this program as root to find all devices. Once > you > # found the scanner devices, be sure to adjust access permissions as > # necessary. > done > > > -- > sane-devel mailing list: sane-devel at lists.alioth.debian.org > http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel > Unsubscribe: Send mail with subject "unsubscribe your_password" > to sane-devel-request at lists.alioth.debian.org -- "The truth is an offense, but not a sin"
