[Bug 6290] Re: DV capture over Firewire is broken (no rights for /dev/raw1394)

Stefan Richter stefan-r-ubz at s5r6.in-berlin.de
Sat Feb 6 14:37:09 UTC 2010


Re comment 61:
> Now i do not know what are the implications of unblocking the firewire-ohci, but
> that was the solution that made my kino/kdenlive worked beautifully....

The implication is that you switched from
    ohci1394 + ieee1394 + raw1394 ( /dev/raw1394 ) --- libraw1394 + libiec61883 + kino
to
    firewire-ohci + firewire-core ( /dev/fw* ) --- libraw1394 + libiec61883 + kino
i.e. to different newer FireWire kernel drivers and a different character device file interface.  This is basically what the blueprint "Enable new Firewire stack in default kernel config" is about.  (See box at the right side of this page.)

The new kernel drivers are simpler, better performing, more compliant to
specifications, and more secure than the older drivers.  In contrast to
Ubuntu's raw1394 access policy, firewire-core's device files are created
with more liberal access permissions for devices which need to be (and
are safe to be) accessed by userspace programs such as kino.

-- 
DV capture over Firewire is broken (no rights for /dev/raw1394)
https://bugs.launchpad.net/bugs/6290
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