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This commit is contained in:
Kovid Goyal 2016-01-18 10:54:01 +05:30
parent d65b7a715c
commit 97cae90435
1 changed files with 10 additions and 8 deletions
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18
src/calibre/devices/winusb.py
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@ -299,6 +299,15 @@ CM_Get_Device_Interface_List = cwrap('CM_Get_Device_Interface_ListW', CONFIGRET,
# }}}
# Utility functions {{{
_devid_pat = None
def devid_pat():
global _devid_pat
if _devid_pat is None:
_devid_pat = re.compile(r'VID_([a-f0-9]{4})&PID_([a-f0-9]{4})&REV_([a-f0-9]{4})', re.I)
return _devid_pat
class DeviceSet(object):
def __init__(self, guid=GUID_DEVINTERFACE_VOLUME, enumerator=None, flags=DIGCF_PRESENT | DIGCF_DEVICEINTERFACE):
@ -413,7 +422,7 @@ def get_device_id(devinst, buf=None):
buf = create_unicode_buffer(devid_size.value)
continue
if ret != CR_CODES['CR_SUCCESS']:
raise WindowsError((result, 'The cfgmgr32 function failed with err: %s' % CR_CODE_NAMES.get(result, result)))
raise WindowsError((ret, 'The cfgmgr32 function failed with err: %s' % CR_CODE_NAMES.get(ret, ret)))
break
return wstring_at(buf), buf
@ -594,13 +603,6 @@ def get_drive_letters_for_device(vendor_id, product_id, bcd=None, storage_number
ans['drive_letters'].sort(key=sort_map.get)
return ans
_devid_pat = None
def devid_pat():
global _devid_pat
if _devid_pat is None:
_devid_pat = re.compile(r'VID_([a-f0-9]{4})&PID_([a-f0-9]{4})&REV_([a-f0-9]{4})', re.I)
return _devid_pat
def get_storage_number_map(drive_types=(DRIVE_REMOVABLE, DRIVE_FIXED), debug=False):
mask = GetLogicalDrives()
type_map = {letter:GetDriveType(letter + ':' + os.sep) for i, letter in enumerate(string.ascii_uppercase) if mask & (1 << i)}