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DateThu, 6 Apr 2006 15:34:05 +0800
From"Maze Maze" <>
SubjectSCSI Bidirectional data transfer
Hi,

I am using redhate linux (kernel 2.4.20)

SCSI supports bidirectional data transfer. However, the two variants
request_bufflen and bufflen of a scsi_cmd are set to be the same in
the scsi_init_cmd_from_req(). I am wondering if i want to send and
receive data with different lengths, how do i pass the lengths to SCSI
layer? The scsi_wait_req() accepts only one length.... Can I make use
of extended CDB? Thanks!
Maze
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