1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>sg (SCSI Generic)</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="SCSI Interfaces Guide"><link rel="up" href="upper_layer.html" title="Chapter 2. SCSI upper layer"><link rel="prev" href="st.html" title="st (SCSI Tape)"><link rel="next" href="ch.html" title="ch (SCSI Media Changer)"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">sg (SCSI Generic)</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="st.html">Prev</a> </td><th width="60%" align="center">Chapter 2. SCSI upper layer</th><td width="20%" align="right"> <a accesskey="n" href="ch.html">Next</a></td></tr></table><hr></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="sg"></a>sg (SCSI Generic)</h2></div></div></div><p>sg (sg.o)</p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="st.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="upper_layer.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ch.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">st (SCSI Tape) </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> ch (SCSI Media Changer)</td></tr></table></div></body></html> 2