usb_free_coherent9
Free memory allocated with usb_alloc_coherent
Usage
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
Overview
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.
Releases
3 releases since Debian 7 (Wheezy); the text changed 2 times.