YubiHSM causes (harmless) ValueError: Invalid PID

[emlun]

• YubiKey Manager (ykman) version: master
• How was it installed?: built from source
• Operating system and version: linux
• YubiKey model and version: any
• Bug description summary: YubiHSM causes (harmless) ValueError: <x> is not a valid PID while plugged in

Steps to reproduce

1. Plug in any YubiKey
2. Plug in a YubiHSM or YubiHSM 2
3. Run any ykman command

Expected result

Nothing remarkable happens.

Actual results and logs

With a YubiHSM 2 (1050:0030) plugged in, ykman logs ValueError: 48 is not a valid PID on every poll of the device:

$ lsusb -d 1050:
Bus 001 Device 021: ID 1050:0030 Yubico.com YubiKey OTP+FIDO+CCID
Bus 001 Device 022: ID 1050:0407 Yubico.com Yubikey 4 OTP+U2F+CCID

 $ ykman --log-level DEBUG info
2019-12-02T14:48:40+0100 INFO [ykman.logging_setup.setup:58] Initialized logging for ykman version: 3.1.0
2019-12-02T14:48:40+0100 DEBUG [ykman.descriptor._gen_descriptors:143] Invalid PID
ValueError: 48 is not a valid PID

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/emlun/dev/yubikey-manager/ykman/descriptor.py", line 141, in _gen_descriptors
    yield Descriptor.from_usb(dev, backend)
  File "/home/emlun/dev/yubikey-manager/ykman/descriptor.py", line 122, in from_usb
    pid = PID(usb_dev.idProduct)
  File "/usr/lib/python3.8/enum.py", line 304, in __call__
    return cls.__new__(cls, value)
  File "/usr/lib/python3.8/enum.py", line 595, in __new__
    raise exc
  File "/usr/lib/python3.8/enum.py", line 579, in __new__
    result = cls._missing_(value)
  File "/usr/lib/python3.8/enum.py", line 608, in _missing_
    raise ValueError("%r is not a valid %s" % (value, cls.__name__))
ValueError: 48 is not a valid PID
2019-12-02T14:48:40+0100 DEBUG [ykman.descriptor.Descriptor.open_device:86] transports: 0x7, self.mode.transports: 0x7
2019-12-02T14:48:40+0100 DEBUG [ykman.descriptor.open_device:91] Opening driver for serial: None, type: YUBIKEY.YK4, mode: OTP+FIDO+CCID
2019-12-02T14:48:40+0100 DEBUG [ykman.descriptor.open_device:94] Attempt 1 of 10
2019-12-02T14:48:40+0100 DEBUG [ykman.descriptor.open_device:97] Found driver: <ykman.driver_ccid.CCIDDriver object at 0x7fede8210fa0>, key_type: YUBIKEY.YK4, mode: OTP+FIDO+CCID
2019-12-02T14:48:40+0100 DEBUG [ykman.device.__init__:198] Read config from device...
2019-12-02T14:48:40+0100 DEBUG [ykman.driver_ccid.send_apdu:228] SEND: b'00a4040008a000000527471117'
2019-12-02T14:48:40+0100 DEBUG [ykman.driver_ccid.send_apdu:230] RECV: b'5669727475616c206d6772202d2046572076657273696f6e20352e312e309000'
2019-12-02T14:48:40+0100 DEBUG [ykman.driver_ccid.send_apdu:228] SEND: b'001d000000'
2019-12-02T14:48:40+0100 DEBUG [ykman.driver_ccid.send_apdu:230] RECV: b'230102023f0302023f020400844f9804010205030501000602000007010f0801000a01009000'
2019-12-02T14:48:40+0100 DEBUG [ykman.device.__init__:200] Success!
2019-12-02T14:48:40+0100 DEBUG [ykman.device.__init__:289] Identified YubiKey 5
Device type: YubiKey 5 Nano
Serial number: 8671128
Firmware version: 5.1.0
Form factor: Nano (USB-A)
Enabled USB interfaces: OTP+FIDO+CCID

Applications
OTP             Enabled
FIDO U2F        Enabled
OpenPGP         Enabled
PIV             Enabled
OATH            Enabled
FIDO2           Enabled
2019-12-02T14:48:40+0100 DEBUG [ykman.driver_ccid.close:269] Close <ykman.driver_ccid.CCIDDriver object at 0x7fede8210fa0>
2019-12-02T14:48:40+0100 DEBUG [ykman.driver_ccid.__del__:273] Destroy <ykman.driver_ccid.CCIDDriver object at 0x7fede8210fa0>
2019-12-02T14:48:40+0100 DEBUG [ykman.driver_ccid.close:269] Close <ykman.driver_ccid.CCIDDriver object at 0x7fede8210fa0>

The same happens with a YubiHSM 1 (1050:0018), except it says 24 is not a valid PID instead.