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firewire: cdev: add_descriptor documentation fix 

struct fw_cdev_add_descriptor.length is in quadlets, not in bytes.
Also remove any doubts about the endianess of descriptor data.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
wifi-calibration
Stefan Richter 2010-01-24 14:48:00 +01:00
parent e300839da4
commit 6d3faf6f43
1 changed files with 3 additions and 1 deletions
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4
include/linux/firewire-cdev.h
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@ -380,7 +380,7 @@ struct fw_cdev_initiate_bus_reset {
* @immediate: If non-zero, immediate key to insert before pointer
* @key: Upper 8 bits of root directory pointer
* @data: Userspace pointer to contents of descriptor block
* @length: Length of descriptor block data, in bytes
* @length: Length of descriptor block data, in quadlets
* @handle: Handle to the descriptor, written by the kernel
*
* Add a descriptor block and optionally a preceding immediate key to the local
@ -394,6 +394,8 @@ struct fw_cdev_initiate_bus_reset {
* If not 0, the @immediate field specifies an immediate key which will be
* inserted before the root directory pointer.
*
* @immediate, @key, and @data array elements are CPU-endian quadlets.
*
* If successful, the kernel adds the descriptor and writes back a handle to the
* kernel-side object to be used for later removal of the descriptor block and
* immediate key.