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usb_buffer_dmasync_sg
Langue: en
Version: June 2009 (debian - 07/07/09)
Section: 9 (Appels noyau Linux)
NAME
usb_buffer_dmasync_sg - synchronize DMA and CPU view of scatterlist buffer(s)SYNOPSIS
- void usb_buffer_dmasync_sg(const struct usb_device * dev, int is_in, struct scatterlist * sg, int n_hw_ents);
ARGUMENTS
dev
- device to which the scatterlist will be mapped
is_in
- mapping transfer direction
sg
- the scatterlist to synchronize
n_hw_ents
- the positive return value from usb_buffer_map_sg
DESCRIPTION
Use this when you are re-using a scatterlist's data buffers for another USB request.
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