Querying usb device by DeviceID with WQL

I can get deviceID from WMI, then I want to use that deviceID to check weather device is in enabled\disabled state and if it's status is OK or not, basically I want to use WQL to query that device later on using this usb device unique DeviceID. Here is a code example that I used and got exception with

import wmi
devid = "USB\VID_04F2&PID_B315\6&EF94D1A&0&6"
c = wmi.WMI()
q2 = "SELECT * FROM Win32_PnPEntity WHERE DeviceID = " + devid + " "
dev = c.query(q2)

When I run this code I get the following error:

Traceback (most recent call last):
File "", line 1, in
File "C:\Python27\lib\site-packages\wmi.py", line 1009, in query
return [ _wmi_object (obj, instance_of, fields) for obj in self._raw_query(wql) ]
File "C:\Python27\lib\site-packages\win32com\client\util.py", line 84, in next return _get_good_object_(self.iter.next(), resultCLSID = self.resultCLSID)
pywintypes.com_error: (-2147217385, 'OLE error 0x80041017', None, None)

Probably my wql query is wrong somehow, could you give me an example of the right way the compose the query?

\ is a special character in WQL and must be escaped with a backslash so your devid should be this:

devid = "'USB\\VID_04F2&PID_B315\\6&EF94D1A&0&6'"

Edit: I also noticed that you aren't wrapping the constant so I added a single quote around the value.