MAPLE(4) Device Drivers Manual (dreamcast) MAPLE(4)

maple —
Maple bus driver

maple0 at shb?

The maple driver provides support for controlling the Maple bus (controller ports).

The following ioctl(2) calls apply to Maple bus devices.
struct maple_devinfo
Read, from the kernel, the device information of the device. 
struct maple_devinfo {
	uint32_t di_func;
	uint32_t di_function_data[3];
	uint8_t di_area_code;
	uint8_t di_connector_direction;
	char di_product_name[30];
	char di_product_license[60];
	uint16_t di_standby_power;
	uint16_t di_max_power;
};

/dev/maplePs
Maple bus device at port P (A-D), subunit s (null for base device, 1-5 for expansion device)

dreamcast/mkbd(4), dreamcast/mlcd(4), dreamcast/mmem(4), dreamcast/mms(4)

The maple device driver appeared in NetBSD 1.6.
February 17, 2017 NetBSD 9.4