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    firewire: cdev: add ioctls for iso resource management, amendment · 5d9cb7d2
    Stefan Richter 提交于
    Some fixes:
      - Remove stale documentation.
      - Fix a != vs. == thinko that got in the way of channel management.
      - Try bandwidth deallocation even if channel deallocation failed.
    
    A simplification:
      - fw_cdev_allocate_iso_resource.channels is now ordered like
        libdc1394's dc1394_iso_allocate_channel() channels_allowed
        argument.
    
    By the way, I looked closer at cards from NEC, TI, and VIA, and noticed
    that they all don't implement IEEE 1394a behaviour which is meant to
    deviate from IEEE 1212's notion of lock compare-swap.  This means that
    we have to do two lock transactions instead of one in many cases where
    one transaction would already succeed on a fully 1394a compliant IRM.
    Signed-off-by: NStefan Richter <stefanr@s5r6.in-berlin.de>
    5d9cb7d2
firewire-cdev.h 23.6 KB