157 lines
2.5 KiB
HTML
157 lines
2.5 KiB
HTML
<HTML
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>SG_SET_KEEP_ORPHAN (and _GET_)</TITLE
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
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REL="HOME"
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TITLE="The Linux SCSI Generic (sg) HOWTO"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="Ioctl()s"
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TITLE="SG_EMULATED_HOST"
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HREF="e_host.html"><LINK
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TITLE="SG_SET_FORCE_LOW_DMA"
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HREF="s_lowdma.html"></HEAD
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>The Linux SCSI Generic (sg) HOWTO</TH
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>Chapter 8. Ioctl()s</TD
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NAME="GS_ORPHAN">8.6. SG_SET_KEEP_ORPHAN (and _GET_)</H1
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><DIV
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CLASS="FORMALPARA"
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><P
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><B
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>SG_SET_KEEP_ORPHAN 0x2287 [_GET_ 0x2288]. </B
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>These ioctl()s allow the setting and reading of the "keep_orphan"
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flag. This controls what happens to the request associated with a
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SG_IO ioctl() that is interrupted (i.e. errno is EINTR). The
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default action is to drop the response as soon as it is received.
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This corresponds to the "keep_orphan" flag being 0. When the
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"keep_orphan" flag is 1 then the response is transformed in such
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a way that it can be fetched by a read(). This is the only
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circumstance in which a request sent by a SG_IO ioctl() can have
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the associated response fetched by a read().</P
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>SG_SET_FORCE_LOW_DMA</TD
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