1USB_BUFFER_DMASYNC_S(9)          USB Core APIs         USB_BUFFER_DMASYNC_S(9)
2
3
4

NAME

6       usb_buffer_dmasync_sg - synchronize DMA and CPU view of scatterlist
7       buffer(s)
8

SYNOPSIS

10       void usb_buffer_dmasync_sg(const struct usb_device * dev, int is_in,
11                                  struct scatterlist * sg, int n_hw_ents);
12

ARGUMENTS

14       dev
15           device to which the scatterlist will be mapped
16
17       is_in
18           mapping transfer direction
19
20       sg
21           the scatterlist to synchronize
22
23       n_hw_ents
24           the positive return value from usb_buffer_map_sg
25

DESCRIPTION

27       Use this when you are re-using a scatterlist's data buffers for another
28       USB request.
29

31Kernel Hackers Manual 3.10         June 2019           USB_BUFFER_DMASYNC_S(9)
Impressum