firewire: cdev: some clarifications to the API documentation

Browse source

Response events:
  - are generated on more occasions than their documentation claimed.

CSR allocation:
  - An already occupied CSR can be determined from errno==EBUSY.

Bus resets:
  - Note that FW_CDEV_IOC_INITIATE_BUS_RESET is nonblocking and that the
    client is not required to observe a grace period since kernels
    2.6.36+ will enforce it now (commit 02d37bed).

  - The possible values of fw_cdev_initiate_bus_reset.type are listed in
    the kerneldoc comment already.

  - Clarify that an application that uses FW_CDEV_IOC_ADD_DESCRIPTOR and
    FW_CDEV_IOC_REMOVE_DESCRIPTOR does not have to issue a bus reset.

Isochronous I/O contexts:
  - At most one can be created per open file descriptor.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

...

This commit is contained in:

Stefan Richter 2010-07-17 21:36:02 +02:00

parent 18d0cdfd1a

commit d505e6e871

1 changed files with 25 additions and 8 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

33

include/linux/firewire-cdev.h

View file