old-www/HOWTO/SCSI-Generic-HOWTO/init.html

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NAME="INIT">Chapter 10. Driver and module initialization</H1
><P
>The size of the default reserved buffer can be specified when the
sg driver is loaded. If it is built into the kernel then use:
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> sg_def_reserved_size=&#60;n&#62;</PRE
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>
on the boot line (only supported in 2.4 kernels).</P
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>If sg is a module, it can be loaded with <B
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>modprobe</B
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in either manner:
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> modprobe sg
modprobe sg def_reserved_size=&#60;n&#62;</PRE
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>
In the second case "&#60;n&#62;" is an integer (non negative). The default
value is the value of the SG_DEF_RESERVED_SIZE defined in sg.h .
This is currently 32768.</P
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>If sg is a module, it can be unloaded with <B
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>rmmod</B
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like this:
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> rmmod sg</PRE
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>
However if there is a file descriptor still open with the sg driver
(or there is an outstanding request awaiting a response) then the
sg module is considered to be busy and can't be unloaded.</P
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