def comports():
# Scan for all iokit serial ports
services = GetIOServicesByType('IOSerialBSDClient')
ports = []
serial_interfaces = scan_interfaces()
for service in services:
# First, add the callout device file.
device = get_string_property(service, "IOCalloutDevice")
if device:
info = list_ports_common.ListPortInfo(device)
# If the serial port is implemented by IOUSBDevice
usb_device = GetParentDeviceByType(service, "IOUSBDevice")
if usb_device:
# fetch some useful informations from properties
info.vid = get_int_property(usb_device, "idVendor",
kCFNumberSInt16Type)
info.pid = get_int_property(usb_device, "idProduct",
kCFNumberSInt16Type)
info.serial_number = get_string_property(
usb_device, "USB Serial Number")
info.product = get_string_property(usb_device,
"USB Product Name") or 'n/a'
info.manufacturer = get_string_property(
usb_device, "USB Vendor Name")
locationID = get_int_property(usb_device, "locationID",
kCFNumberSInt32Type)
info.location = location_to_string(locationID)
info.interface = search_for_locationID_in_interfaces(
serial_interfaces, locationID)
info.apply_usb_info()
ports.append(info)
return ports
def comports():
GUIDs = (GUID * 8)() # so far only seen one used, so hope 8 are enough...
guids_size = DWORD()
if not SetupDiClassGuidsFromName(Ports, GUIDs, ctypes.sizeof(GUIDs),
ctypes.byref(guids_size)):
raise ctypes.WinError()
# repeat for all possible GUIDs
for index in range(guids_size.value):
g_hdi = SetupDiGetClassDevs(
ctypes.byref(GUIDs[index]), None, NULL, DIGCF_PRESENT
) # was DIGCF_PRESENT|DIGCF_DEVICEINTERFACE which misses CDC ports
devinfo = SP_DEVINFO_DATA()
devinfo.cbSize = ctypes.sizeof(devinfo)
index = 0
while SetupDiEnumDeviceInfo(g_hdi, index, ctypes.byref(devinfo)):
index += 1
# get the real com port name
hkey = SetupDiOpenDevRegKey(
g_hdi,
ctypes.byref(devinfo),
DICS_FLAG_GLOBAL,
0,
DIREG_DEV, # DIREG_DRV for SW info
KEY_READ)
port_name_buffer = byte_buffer(250)
port_name_length = ULONG(ctypes.sizeof(port_name_buffer))
RegQueryValueEx(hkey, PortName, None, None,
ctypes.byref(port_name_buffer),
ctypes.byref(port_name_length))
RegCloseKey(hkey)
# unfortunately does this method also include parallel ports.
# we could check for names starting with COM or just exclude LPT
# and hope that other "unknown" names are serial ports...
if string(port_name_buffer).startswith('LPT'):
continue
# hardware ID
szHardwareID = byte_buffer(250)
# try to get ID that includes serial number
if not SetupDiGetDeviceInstanceId(
g_hdi, ctypes.byref(devinfo), ctypes.byref(szHardwareID),
ctypes.sizeof(szHardwareID) - 1, None):
# fall back to more generic hardware ID if that would fail
if not SetupDiGetDeviceRegistryProperty(
g_hdi, ctypes.byref(devinfo), SPDRP_HARDWAREID, None,
ctypes.byref(szHardwareID),
ctypes.sizeof(szHardwareID) - 1, None):
# Ignore ERROR_INSUFFICIENT_BUFFER
if ctypes.GetLastError() != ERROR_INSUFFICIENT_BUFFER:
raise ctypes.WinError()
# stringify
szHardwareID_str = string(szHardwareID)
info = list_ports_common.ListPortInfo(string(port_name_buffer))
# in case of USB, make a more readable string, similar to that form
# that we also generate on other platforms
if szHardwareID_str.startswith('USB'):
m = re.search(r'VID_([0-9a-f]{4})&PID_([0-9a-f]{4})(\\(\w+))?',
szHardwareID_str, re.I)
if m:
info.vid = int(m.group(1), 16)
info.pid = int(m.group(2), 16)
if m.group(4):
info.serial_number = m.group(4)
# calculate a location string
loc_path_str = byte_buffer(250)
if SetupDiGetDeviceRegistryProperty(
g_hdi, ctypes.byref(devinfo), SPDRP_LOCATION_PATHS,
None, ctypes.byref(loc_path_str),
ctypes.sizeof(loc_path_str) - 1, None):
#~ print (string(loc_path_str))
m = re.finditer(r'USBROOT\((\w+)\)|#USB\((\w+)\)',
string(loc_path_str))
location = []
for g in m:
if g.group(1):
location.append('%d' % (int(g.group(1)) + 1))
else:
if len(location) > 1:
location.append('.')
else:
location.append('-')
location.append(g.group(2))
if location:
info.location = ''.join(location)
info.hwid = info.usb_info()
elif szHardwareID_str.startswith('FTDIBUS'):
m = re.search(
r'VID_([0-9a-f]{4})\+PID_([0-9a-f]{4})(\+(\w+))?',
szHardwareID_str, re.I)
if m:
info.vid = int(m.group(1), 16)
info.pid = int(m.group(2), 16)
if m.group(4):
info.serial_number = m.group(4)
# USB location is hidden by FDTI driver :(
info.hwid = info.usb_info()
else:
info.hwid = szHardwareID_str
# friendly name
szFriendlyName = byte_buffer(250)
if SetupDiGetDeviceRegistryProperty(
g_hdi,
ctypes.byref(devinfo),
SPDRP_FRIENDLYNAME,
#~ SPDRP_DEVICEDESC,
None,
ctypes.byref(szFriendlyName),
ctypes.sizeof(szFriendlyName) - 1,
None):
info.description = string(szFriendlyName)
#~ else:
# Ignore ERROR_INSUFFICIENT_BUFFER
#~ if ctypes.GetLastError() != ERROR_INSUFFICIENT_BUFFER:
#~ raise IOError("failed to get details for %s (%s)" % (devinfo, szHardwareID.value))
# ignore errors and still include the port in the list, friendly name will be same as port name
yield info
SetupDiDestroyDeviceInfoList(g_hdi)
def comports():
devices = glob.glob('/dev/cua*[!.init][!.lock]')
return [list_ports_common.ListPortInfo(d) for d in devices]
def comports():
"""scan for available ports. return a list of device names."""
devices = glob.glob('/dev/tty*')
return [list_ports_common.ListPortInfo(d) for d in devices]
def comports():
devices = glob.glob('/dev/ttyS*')
return [list_ports_common.ListPortInfo(d) for d in devices]
