usb_buffer_unmap(9)

NAME

usb_buffer_unmap - free DMA mapping(s) for an urb

SYNOPSIS

void usb_buffer_unmap(struct urb * urb);

ARGUMENTS

urb

urb whose transfer_buffer will be unmapped

DESCRIPTION

Reverses the effect of usb_buffer_map.

COPYRIGHT

Kernel Hackers Manual 2.6. August 2009 USB_BUFFER_UNMAP(9)