# coding: utf-8

"""

Interfaces contain low level implementations that interact with CAN hardware.

"""

import warnings

from pkg_resources import iter_entry_points

# interface_name => (module, classname)

BACKENDS = {

"kvaser": ("can.interfaces.kvaser", "KvaserBus"),

"socketcan": ("can.interfaces.socketcan", "SocketcanBus"),

"serial": ("can.interfaces.serial.serial_can", "SerialBus"),

"pcan": ("can.interfaces.pcan", "PcanBus"),

"usb2can": ("can.interfaces.usb2can", "Usb2canBus"),

"ixxat": ("can.interfaces.ixxat", "IXXATBus"),

"nican": ("can.interfaces.nican", "NicanBus"),

"iscan": ("can.interfaces.iscan", "IscanBus"),

"virtual": ("can.interfaces.virtual", "VirtualBus"),

"neovi": ("can.interfaces.ics_neovi", "NeoViBus"),

"vector": ("can.interfaces.vector", "VectorBus"),

"slcan": ("can.interfaces.slcan", "slcanBus"),

"canalystii": ("can.interfaces.canalystii", "CANalystIIBus"),

"systec": ("can.interfaces.systec", "UcanBus"),

"seeedstudio": ("can.interfaces.seeedstudio", "SeeedBus"),

}

BACKENDS.update(

{

interface.name: (interface.module_name, interface.attrs[0])

for interface in iter_entry_points("can.interface")

}

)

VALID_INTERFACES = frozenset(list(BACKENDS.keys()))