We are using LPC4357 process for our custom board. We are planning to use USB0 as mass storage host and USB1 as HID device. Reliability is the number one priority for our customers. We are trying to make NXPUSBlib work, but we are also exploring embedded USB stack for the mass storage host and HID device. Any vendor suggestions? In the past, when we asked this question you mentioned Thesycon however it is no longer supporting embedded USB stack.