Firewire is NOT dead (at least not yet)

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Been a while since I posted but wanted to grab some old DV files from the Video Camera.   A lot of peple report firewire support being broken in many linux distros, but figuring out how to login to my old blog was a tad bit harder than getting ieee1394 interfaces working again on my linux system!

Steps for future reference
1.  Install Ubuntu Studio.

Note:  While I've been using LinuxMint for many years, I felt like a change anyway.

2. Set Up Firewire IRQ Priorities.  Confirmed changes on my system:

cat /etc/default/rtirq
RTIRQ_NAME_LIST="rtc firewire snd usb i8042"
RTIRQ_NONE_THREADED="rtc firewire snd"

3.  Reboot - Here's output of dmesg and lspci

$dmesg |grep firewire 
[    1.603804] firewire_ohci 0000:04:09.0: added OHCI v1.10 device as card 0, 4 IR + 8 IT contexts, quirks 0x41
[    2.110941] firewire_core 0000:04:09.0: created device fw0: GUID 0011066600000215, S400
[   90.935327] firewire_core 0000:04:09.0: phy config: new root=ffc1, gap_count=5
[   91.528410] firewire_core 0000:04:09.0: created device fw1: GUID 08004601024a8c78, S100
  
$ lspci -v

04:09.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller (rev 46) (prog-if 10 [OHCI])
 Subsystem: VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller
 Flags: bus master, medium devsel, latency 64, IRQ 17
 Memory at fbfff800 (32-bit, non-prefetchable) [size=2K]
 I/O ports at ec00 [size=128]
 Capabilities: 
 Kernel driver in use: firewire_ohci
 Kernel modules: firewire_ohci

4. Plug in Sony MiniDV Digital Handycap (DCR-TVR18 NSTC) and use dvgrab to test:

~$ dvgrab 
Found AV/C device with GUID 0x08004601024a8c78
Waiting for DV...
Capture Started
"dvgrab-002.dv":    13.73 MiB 120 frames timecode 00:01:14.17 date 2067.02.15 22:26:25
Capture Stopped 
 
~$ ls |grep dv
dvgrab-002.dv

5. Edit dv file with your favorite non linear video editor.  My old favorite Kino appears to be dead but OpenShot Video Editor and Kdenlive are preinstalled on Ubuntu Studo and both packages work very well for splicing and editing your video files.

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