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Top Forums UNIX for Dummies Questions & Answers What does ls /nosuchdir means ??? Post 302164595 by risshanth on Tuesday 5th of February 2008 11:00:24 AM
Old 02-05-2008
What does ls /nosuchdir means ???

I do have a segment in my code like follows:

if [ condition ] then
ls /nosuchdir
fi


what does the ls /nosuchdir means ??
 

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ddi_dma_nextseg(9F)					   Kernel Functions for Drivers 				       ddi_dma_nextseg(9F)

NAME
ddi_dma_nextseg - get next DMA segment SYNOPSIS
#include <sys/ddi.h> #include <sys/sunddi.h> int ddi_dma_nextseg(ddi_dma_win_t win, ddi_dma_seg_t seg, ddi_dma_seg_t *nseg); INTERFACE LEVEL
This interface is obsolete. ddi_dma_nextcookie(9F) should be used instead. PARAMETERS
win A DMA window. seg The current DMA segment or NULL. nseg A pointer to the next DMA segment to be filled in. If seg is NULL, a pointer to the first segment within the specified win- dow is returned. DESCRIPTION
ddi_dma_nextseg() gets the next DMA segment within the specified window win. If the current segment is NULL, the first DMA segment within the window is returned. A DMA segment is always required for a DMA window. A DMA segment is a contiguous portion of a DMA window (see ddi_dma_nextwin(9F)) which is entirely addressable by the device for a data transfer operation. An example where multiple DMA segments are allocated is where the system does not contain DVMA capabilities and the object may be non-con- tiguous. In this example the object will be broken into smaller contiguous DMA segments. Another example is where the device has an upper limit on its transfer size (for example an 8-bit address register) and has expressed this in the DMA limit structure (see ddi_dma_lim_sparc(9S) or ddi_dma_lim_x86(9S)). In this example the object will be broken into smaller addressable DMA segments. RETURN VALUES
ddi_dma_nextseg() returns: DDI_SUCCESS Successfully filled in the next segment pointer. DDI_DMA_DONE There is no next segment. The current segment is the final segment within the specified window. DDI_DMA_STALE win does not refer to the currently active window. CONTEXT
ddi_dma_nextseg() can be called from user or interrupt context. EXAMPLES
For an example, see ddi_dma_segtocookie(9F). ATTRIBUTES
See attributes(5) for a description of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Stability Level |Obsolete | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5), ddi_dma_addr_setup(9F), ddi_dma_buf_setup(9F), ddi_dma_nextcookie(9F), ddi_dma_nextwin(9F), ddi_dma_segtocookie(9F), ddi_dma_sync(9F), ddi_dma_lim_sparc(9S), ddi_dma_lim_x86(9S), ddi_dma_req(9S) Writing Device Drivers SunOS 5.10 27 Sep 2002 ddi_dma_nextseg(9F)
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