Name
usb_free_coherent —
free memory allocated with usb_alloc_coherent
Synopsis
void usb_free_coherent ( | struct usb_device * dev, |
| | size_t size, |
| | void * addr, |
| | dma_addr_t dma); |
Arguments
dev
device the buffer was used with
size
requested buffer size
addr
CPU address of buffer
dma
DMA address of buffer
Description
This reclaims an I/O buffer, letting it be reused. The memory must have
been allocated using usb_alloc_coherent, and the parameters must match
those provided in that allocation request.