1. A method for processing data, the method comprising: determining a plurality of types of Universal Serial Bus (USB) data being provided for transmission, wherein the determined plurality of types of USB data comprises a first type of the USB data and a second type of the USB data; determining a priority of the USB data based on the determined plurality of types of the USB data; and controlling, based on the determined priority of the determined plurality of types of USB data, transfer of the USB data from a protocol adaptation layer (PAL) of a USB host to a network layer of the USB host, wherein the PAL of the USB host is responsible for management of at least one USB device that receives the USB data from the network layer, wherein determining the priority of the USB data based on the determined plurality of types of the USB data comprises determining a threshold for outstanding transfer requests of the first type of the USB data, wherein the outstanding transfer requests comprise requests that have been released to the network layer and are waiting to be transmitted, and wherein controlling transfer of the USB data based on the determined priority comprises: in a first instance where a number of outstanding transfer requests of the first type of the USB data is lower than or equal to the threshold, storing the first type of the USB data to a buffer associated with the PAL, and, subsequent to the storing, controlling the transfer of the first type of the USB data from the PAL to the network layer; in a second instance where the number of outstanding transfer requests of the first type of the USB data is greater than the threshold, holding the first type of the USB data in a transfer queue at the PAL until the number of outstanding transfer requests of the first type of the USB data is lower than or equal to the threshold; and in the second instance where the number of outstanding transfer requests of the first type of the USB data is greater than the threshold, controlling transfer of the second type of the USB data from the PAL to the network layer.