|SANE pac20x vidcam backend under development|
Main Index, webcam info, Info, links, documents, Camera info, Progress, Download, To Do list
Goal for this page is to collect data about the PAC207BCA-32 single chip camera and to give information about the start of writing of a SANE pac20x Vidcam backend. No working driver found yet, description which usb commands are needed to init and read frames from the webcam? also frame decompression/unshuffle?.
Info, links, documents Camera info Q-TEC Webcam 100 USB Mead-Bresser, BinOcular Orite SC-120 iConcepts Desktop Mini Webcam other camera's Meade MicrOcular usb vid 0x093a pid 0x2468 contains a PAC207BCA-32 Cibox PC-188 usb vid 0x093a pid 0x2468 Conceptronic funcam. usb vid 0x093a pid 0x2468 V4L kernel module driver spca5xx Michel Xhaard chip info Single chip manufactuer: PixArt Return/Terug Top
Q-TEC Webcam 100 USB vid 0x093a, pid 0x2460 Interface usb 1.1, Optical Resolution: 352x288, 320x240, 176x144, 160x120. fileformat: frameheader and frame data, compressed or raw data Q-TEC Webcam 100 USB: CIF single chip: PixArt PAC207BCA-32 USB Bridge: Embedded ......... Sensor: Embedded PixArt PAS106 sensor Document: PAC207BCA_Spec_V12.pdf from PixArt Lens: ..... Q-TEC-100-front.jpg Q-TEC-100-back.jpg 21-02-2005 .. 21-02-2005 .. xcam frontend screenshot: For using these skeleton files SANE pac20x backend the following files need to be patched/placed: sane backends (use version 1.0.18 or higher): placed in backend directory: pac20x.c, pax20x.h, pax20x.conf.in, patched in backend directory: Makefile.in, dll.conf patched configure.in patched in tools/hotplug libsane.usermap (add line with vid and pid webcam) sane-frontend (use version 1.0.14 or higher). system patched /etc/hotplug/ blacklist (add line with: ????? kernel module) see also download link At this moment there are two frontends which can be used with the pac20x backend: 1. xcam: for display (no streaming video (SANE bugreport 300832) only snapshots in display and save to file is possible). If a modified version is used, only streaming frames is possible remove first "stop_camera ();" line in routine "input_available". 2. scanimage: for writing in batch mode to files (files can be one file each time overwritten or each time a frame is written to a new file). scanimage -B -d pac20x:libusb:001:002 --batch=out.pnm --batch-count 5 --mode "Color RGB" for different files use =out%d.pnm 3. saned: not tested yet. 4. USB network? see usbip Using other frontends will be a problem, no idea if for example writing a gstreamer-sane plugin will be a lot of work and/or difficult. Another solution could be to use a frontend which can read the file from scanimage which is refreshed at a rate of .. fps. Return/Terug Top
Progress 23-02-2005 01-11-2005 .. Working on compressed/shuffled frames. 21-02-2005 21-02-2005 .. Working on usb commands. 17-02-2005 21-02-2005 .. Working on skeleton files pac20x.c, pac20x.h and pac20x.conf (ready) 17-02-2005 26-02-2005 .. See file for some collected data pac207, such as lusb output, usb commands register info, header frame info,pac207.txt 17-02-2005 Start of webpage, some test done (lsusb -v, sane-find-scanner -v -v). No working driver found yet. Return/Terug Top
Download 17-02-2005 See Downloads page Return/Terug Top
TO DO list 1. Usb commands 2. Detect the frame header in data stream and place frame in buffer. 3. Unshuffle/decompress raw frame 4. Isochronous mode routine at the moment bulk mode is used. Return/Terug Top
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