libusb_get_iso_packet_buffer ( transfer packet -- data )

Vocabulary

libusb

Inputs

transfer	an object
packet	an object

Outputs

data

an object

Definition

USING: accessors alien alien.data kernel math sequences ;

IN: libusb

:: libusb_get_iso_packet_buffer ( transfer packet -- data )
    packet transfer num_iso_packets>> >=
    [ f ] [
        transfer
        [ iso_packet_desc>> >c-ptr ] [ num_iso_packets>> ] bi
        libusb_iso_packet_descriptor <c-direct-array> 0
        [ length>> + ] reduce
        transfer buffer>> <displaced-alien>
    ] if ;