usb_buffer_dmasync_sg
Name
usb_buffer_dmasync_sg -- synchronize DMA and CPU view of scatterlist buffer(s)
Synopsis
void usb_buffer_dmasync_sg
(struct usb_device * dev, unsigned pipe, struct scatterlist * sg, int n_hw_ents);
Arguments
dev
device to which the scatterlist will be mapped
pipe
endpoint defining the mapping 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.