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The Linux SCSI Generic (sg) HOWTO |
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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:
on the boot line (only supported in 2.4 kernels).
If sg is a module, it can be loaded with
modprobe
in either manner:
modprobe sg
modprobe sg def_reserved_size=<n>
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In the second case "<n>" 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.
If sg is a module, it can be unloaded with
rmmod
like this:
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.
