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+What: dv1394 (a.k.a. "OHCI-DV I/O support" for FireWire)
+Date: May 2010 (scheduled), finally removed in kernel v2.6.37
+ /dev/dv1394/* were character device files, one for each FireWire
+ controller and for NTSC and PAL respectively, from which DV data
+ could be received by read() or transmitted by write(). A few
+ ioctl()s allowed limited control.
+ This special-purpose interface has been superseded by libraw1394 +
+ libiec61883 which are functionally equivalent, support HDV, and
+ transparently work on top of the newer firewire kernel drivers.
+ ffmpeg/libavformat (if configured for DV1394)