On Wed, Feb 03, 1999 at 02:15:39AM +0000, Stephen Palmer wrote: > >While looking at the output from dmesg, I noticed the following >which I don't remember having seen before. (Of course I might >not have had the camera hooked up to this system while running >FreeBSD before ;-)
Sure, this is really new. > >Probing for PnP devices on ppbus0: >ppbus0: <VLSI Vision Ltd PPC2 Camera> MEDIA CPIA_1-20 What it means: the parallel port bus system - ppbus - probes the parallel port in order to detect eventually an IEEE1284 (parallel port standard released in 1994) compliant device. So your camera is IEEE1284 compliant because ppbus could enter the NIBBLE-get_device_id mode and retrieve PnP info from it. The line before tells you something like "IEEE1284 device found..." with the available IEEE1284 modes supported by your device. > >This is actualy a "Zoom/Video Cam PPC" which I use under Win98 >from time to time. Any chance of getting working images from >this device under FreeBSD-current? How would I go about this? The link protocol is supported by FreeBSD, this is what the IEEE1284 stuff is for. But you'll also need info about higher protocols of the device to drive it correctly. (1) The device is really simple and a 'cat' from the parallel port in any of the supported modes is enough. That would suppose the camera dumps pictures to the port as they are captured. Of course, you should guess the format. This is the case with printers supporting IEEE1284: cat /dev/lpt0 gives printer info (READY, OUT OF PAPER...). If NIBBLE mode is supported by your device, which is not certain if I remember well your logs, you can try cat /dev/lpt0. Otherwise we'll have to hack ppi(4) to give it a try.. (2) The device is more complicated and an analyser under windows may give you the magic sequence to enter plain reverse mode to retrieve pictures as they are captured. > >This system is not currently very current (Jan 14, 1999 / no pun >intended) but I'm cvsup'ing as I type this... > >Stephen L. Palmer >slpal...@netscape.net > Nicholas. > >____________________________________________________________________ >More than just email--Get your FREE Netscape WebMail account today at >http://home.netscape.com/netcenter/mail > >To Unsubscribe: send mail to majord...@freebsd.org >with "unsubscribe freebsd-current" in the body of the message > -- nso...@teaser.fr / nso...@freebsd.org FreeBSD - Turning PCs into workstations - http://www.FreeBSD.org To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-current" in the body of the message
