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.TH "TIOCA_DMA_UNMAP" "9" "09 October 2005" "" ""

.SH NAME
tioca_dma_unmap \- release CA mapping resources
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
void tioca_dma_unmap  (struct pci_dev * \fIpdev\fB, dma_addr_t \fIbus_addr\fB, int \fIdir\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIpdev\fB\fR
linux pci_dev representing the function
.TP
\fB\fIbus_addr\fB\fR
bus address returned by an earlier tioca_dma_map
.TP
\fB\fIdir\fB\fR
mapping direction (unused)
.SH "DESCRIPTION"
.PP
Locate mapping resources associated with \fIbus_addr\fR and release them.
For mappings created using the direct modes (64 or 48) there are no
resources to release.