interface bd extends service {
		/* Share out data buffer */
		sysarg_t ipc_m_share_out(in sysarg_t as_area_base, in sysarg_t as_area_size, in sysarg_t flags, out sysarg_t dst_as_area_base);

		/* Get block size */
		sysarg_t get_block_size(out sysarg_t block_size);

		/* Read blocks via shared data buffer */
		sysarg_t read_blocks(in sysarg_t index_lower, in sysarg_t index_upper, in sysarg_t count);

		/* Write blocks via shared data buffer */
		sysarg_t write_blocks(in sysarg_t index_lower, in sysarg_t index_upper, in sysarg_t count);
	protocol:
		[bd.bp]
};

architecture bd {
	inst rd rd;

	[/uspace/lib/libc/subsume%rd]

	delegate rd to rd:rd;

	subsume rd:ns to ns;
	subsume rd:devmap_driver to devmap_driver;
};