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firewire: cdev: extend fw_cdev_event_iso_interrupt documentation
Add information regarding the 2.6.32 update to the xmit variant of fw_cdev_event_iso_interrupt. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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1 changed files with 15 additions and 4 deletions
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@ -204,10 +204,21 @@ struct fw_cdev_event_request2 {
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* @header: Stripped headers, if any
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* @header: Stripped headers, if any
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*
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*
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* This event is sent when the controller has completed an &fw_cdev_iso_packet
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* This event is sent when the controller has completed an &fw_cdev_iso_packet
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* with the %FW_CDEV_ISO_INTERRUPT bit set. In the receive case, the headers
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* with the %FW_CDEV_ISO_INTERRUPT bit set.
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* stripped of all packets up until and including the interrupt packet are
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*
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* returned in the @header field. The amount of header data per packet is as
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* Isochronous transmit events:
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* specified at iso context creation by &fw_cdev_create_iso_context.header_size.
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*
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* In version 1 of the ABI, &header_length is 0. In version 3 and some
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* implementations of version 2 of the ABI, &header_length is a multiple of 4
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* and &header contains timestamps of all packets up until the interrupt packet.
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* The format of the timestamps is as described below for isochronous reception.
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*
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* Isochronous receive events:
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*
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* The headers stripped of all packets up until and including the interrupt
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* packet are returned in the @header field. The amount of header data per
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* packet is as specified at iso context creation by
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* &fw_cdev_create_iso_context.header_size.
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*
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*
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* In version 1 of this ABI, header data consisted of the 1394 isochronous
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* In version 1 of this ABI, header data consisted of the 1394 isochronous
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* packet header, followed by quadlets from the packet payload if
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* packet header, followed by quadlets from the packet payload if
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