diff options
author | David Vrabel <david.vrabel@csr.com> | 2008-10-20 16:07:19 +0100 |
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committer | David Vrabel <david.vrabel@csr.com> | 2008-10-20 16:07:19 +0100 |
commit | 61e0e79ee3c609eb34edf2fe023708cba6a79b1f (patch) | |
tree | 663deacffd4071120dc9badb70428fe5f124c7b9 /include/linux/firewire-cdev.h | |
parent | c15895ef30c2c03e99802951787183039a349d32 (diff) | |
parent | 0cfd81031a26717fe14380d18275f8e217571615 (diff) |
Merge branch 'master' into for-upstream
Conflicts:
Documentation/ABI/testing/sysfs-bus-usb
drivers/Makefile
Diffstat (limited to 'include/linux/firewire-cdev.h')
-rw-r--r-- | include/linux/firewire-cdev.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h index 0f0e271f97f..4d078e99c01 100644 --- a/include/linux/firewire-cdev.h +++ b/include/linux/firewire-cdev.h @@ -154,8 +154,13 @@ struct fw_cdev_event_iso_interrupt { * @request: Valid if @common.type == %FW_CDEV_EVENT_REQUEST * @iso_interrupt: Valid if @common.type == %FW_CDEV_EVENT_ISO_INTERRUPT * - * Convenience union for userspace use. Events could be read(2) into a char - * buffer and then cast to this union for further processing. + * Convenience union for userspace use. Events could be read(2) into an + * appropriately aligned char buffer and then cast to this union for further + * processing. Note that for a request, response or iso_interrupt event, + * the data[] or header[] may make the size of the full event larger than + * sizeof(union fw_cdev_event). Also note that if you attempt to read(2) + * an event into a buffer that is not large enough for it, the data that does + * not fit will be discarded so that the next read(2) will return a new event. */ union fw_cdev_event { struct fw_cdev_event_common common; |