Re: generating firewire traffic
Carl Karsten <[email protected]>
| Newsgroups | gmane.comp.video.kino.devel |
|---|---|
| Message-ID | <[email protected]> |
On Wed, Jun 10, 2009 at 9:33 AM, Stefan Richter<[email protected]> wrote: > /dev/dv1394/$n > It's only of peripheral interest to kino-dev then. :-) > ([email protected] and [email protected] cover kernel > driver topics.) Should I move this thread to that list? > Well, you actually /can/ achieve something similar without camera or > second PC or second card --- by /transmitting/ video (which works even > if nothing is connected). root@dhcp216:~# echo x|/dev/raw1394 bash: /dev/raw1394: Permission denied bash: echo: write error: Broken pipe root@dhcp216:~# ls -l /dev/raw1394 crw-rw---- 1 root disk 171, 0 2009-06-13 16:03 /dev/raw1394 > But different DMA units of the controller and > different DMA programming of the kernel drivers would be involved then, > so you may get same or different results --- more likely different results. OK, if the above is a dead end, I have no battle here. (I am just trying to gather facts in hopes it helps someone fix it.) > /dev/raw1394 isn't cat-friendly. But you could try testdv on it or > something along the lines. Where do I get testdv? I have no /dev/raw1394* # cat /dev/dv1394/$n carl@dv67:~$ cat /dev/raw139/0 >/dev/null cat: /dev/raw139/0: No such file or directory carl@dv67:~$ ls /dev/raw1394* /dev/raw1394 carl@dv67:~$ dmesg|grep 1394 [ 1.669470] ohci1394 0000:02:05.0: PCI INT A -> Link[LNK1] -> GSI 5 (level, low) -> IRQ 5 [ 1.726124] ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[5] MMIO=[f6100000-f61007ff] Max Packet=[2048] IR/IT contexts=[4/4] [ 3.018639] ieee1394: Node added: ID:BUS[0-00:1023] GUID[008088030a613f59] [ 3.018706] ieee1394: Host added: ID:BUS[0-01:1023] GUID[00241b00964cac00] [ 4.499059] ieee1394: raw1394: /dev/raw1394 device initialized -- Carl K ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects