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eab7e456fe
Actually, at device level we want to specify 0, so we can select individual Class/Subclass values at Interface values. Table 9-8 of the USB2 Specification is quite clear about this.
== BOARDS A board defines a given circuit board, i.e. SIMtrace, OWHW, QMOD It defines the given hardware model for which the program is to be compiled. Current boards supported are: * simtrace: The good old Osmocom SIMtrace PCB with SAM3 instead of SAM7, open hardware. * qmod: A sysmocom-proprietary quad mPCIe carrier board, publicly available * owhw: An undisclosed sysmocom-internal board, not publicly available == APPLICATIONS An application is a specific piece of software with given functionality. == ENVIRONMENTS An environment is a runtime environment, typically defined by a linker script. The current runtime environments include * flash: Run natively from start of flash memory * dfu: Run after a DFU bootloader from an offset after the first 16k of flash (the first 16k are reserved for the bootloader) * ram: Run from within the RAM of the chip, downloaded via JTAG/SWD == Building A given software build is made for a specific combination of an APP running in a certain ENVIRONMENT on a given BOARD.