Some polishing about option direct_write_amount=
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@ -2,7 +2,7 @@
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.\" First parameter, NAME, should be all caps
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.\" First parameter, NAME, should be all caps
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.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
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.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
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.\" other parameters are allowed: see man(7), man(1)
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.\" other parameters are allowed: see man(7), man(1)
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.TH CDRSKIN 1 "July 19, 2007"
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.TH CDRSKIN 1 "August 12, 2007"
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.\" Please adjust this date whenever revising the manpage.
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.\" Please adjust this date whenever revising the manpage.
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.\"
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.\"
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.\" Some roff macros, for reference:
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.\" Some roff macros, for reference:
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@ -650,6 +650,32 @@ Number dev='Devicefile' rw-Permissions : 'Vendor' 'Model'
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Number and Devicefile can both be used with option dev=, but number is
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Number and Devicefile can both be used with option dev=, but number is
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volatile (numbering changes if drives become busy).
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volatile (numbering changes if drives become busy).
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.TP
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.TP
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.BI direct_write_amount= size
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Do not write a session with tracks but rather make an appropriate number of
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direct write operations with no preparations. Flushing the drive buffer will
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be the only finalization. It is advised to eject the media afterwards because
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the write operations circumvent the usual system i/o with its caches and
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buffers. By ejecting, those invalid memory copies get surely discarded.
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.br
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Only few media can be written this way: DVD-RAM, RVD+RW and overwriteable
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DVD-RW. Writing is restricted to the already formatted area of the media.
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.br
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Writing starts at byte 0 of the media or at the address given by option
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.B write_start_address= .
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Only the first track source is used as input for the write operations.
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The fifo (fs=) is disabled.
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.br
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Parameter
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.B size
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controls the amount of data to be written. Size 0 means that the track source
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shall be used up until EOF. In this case, the last write transaction gets
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padded up to the necessary size by zeros. Size -1 revokes direct writing
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and switches back to normal session oriented writing.
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.br
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Both, write_start_address and direct_write_amount size must be aligned to a
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media dependend transaction size. With DVD-RAM and DVD+RW this is 2k, with
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overwriteable DVD-RW it is 32k.
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.TP
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.BI fifo_start_at= size
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.BI fifo_start_at= size
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Do not wait for full fifo but start burning as soon as the given number
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Do not wait for full fifo but start burning as soon as the given number
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of bytes is read. This option may be helpful to bring the average throughput
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of bytes is read. This option may be helpful to bring the average throughput
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@ -246,7 +246,10 @@ Enhancements towards previous stable version cdrskin-0.3.6:
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<DT><H3>Development snapshot, version 0.3.9 :</H3></DT>
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<DT><H3>Development snapshot, version 0.3.9 :</H3></DT>
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<DD>Enhancements towards stable version 0.3.8.pl00:
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<DD>Enhancements towards stable version 0.3.8.pl00:
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<UL>
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<UL>
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<LI>New option direct_write_amount=</LI>
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<!--
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<LI>none yet</LI>
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<LI>none yet</LI>
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-->
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</UL>
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</UL>
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</DD>
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</DD>
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<DD> </DD>
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<DD> </DD>
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