usb_buffer_free(9)

NAME

usb_buffer_free - free memory allocated with usb_buffer_alloc

SYNOPSIS

void usb_buffer_free(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_buffer_alloc, and the parameters must match those provided in that allocation request.

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