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Possible fix for imcov6L not being detected

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Now when a composite device is detected, look for drives belonging to
all devices from that composite device
This commit is contained in:
Kovid Goyal 2016-01-31 20:35:40 +05:30
parent ec01916a56
commit afb753afbe
1 changed files with 26 additions and 5 deletions
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31
src/calibre/devices/winusb.py
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@ -688,8 +688,7 @@ def get_drive_letters_for_device(usbdev, storage_number_map=None, debug=False):
:param usbdevice: As returned by :function:`scan_usb_devices`
'''
ans = {'pnp_id_map': {}, 'drive_letters':[], 'readonly_drives':set()}
sort_map = {}
ans = {'pnp_id_map': {}, 'drive_letters':[], 'readonly_drives':set(), 'sort_map':{}}
sn_map = get_storage_number_map(debug=debug) if storage_number_map is None else storage_number_map
if debug:
@ -697,7 +696,29 @@ def get_drive_letters_for_device(usbdev, storage_number_map=None, debug=False):
prints(pformat(sn_map))
if not sn_map:
return ans
devid, mi = (usbdev.devid or '').rpartition('&')[::2]
if mi.startswith('mi_'):
if debug:
prints('Iterating over all devices of composite device:', devid)
dl = ans['drive_letters']
for c in iterusbdevices():
if c.devid and c.devid.startswith(devid):
a = get_drive_letters_for_device_single(c, sn_map, debug=debug)
if debug:
prints('Drive letters for:', c.devid, ':', a['drive_letters'])
for m in ('pnp_id_map', 'sort_map'):
ans[m].update(a[m])
ans['readonly_drives'] |= a['readonly_drives']
for x in a['drive_letters']:
if x not in dl:
dl.append(x)
ans['drive_letters'].sort(key=ans['sort_map'].get)
return ans
else:
return get_drive_letters_for_device_single(usbdev, sn_map, debug=debug)
def get_drive_letters_for_device_single(usbdev, storage_number_map, debug=False): # {{{
ans = {'pnp_id_map': {}, 'drive_letters':[], 'readonly_drives':set(), 'sort_map':{}}
descendants = frozenset(iterdescendants(usbdev.devinst))
for devinfo, devpath in DeviceSet(GUID_DEVINTERFACE_DISK).interfaces():
if devinfo.DevInst in descendants:
@ -715,16 +736,16 @@ def get_drive_letters_for_device(usbdev, storage_number_map=None, debug=False):
if debug:
prints('Storage number for %s: %s' % (devid, storage_number))
if storage_number:
partitions = sn_map.get(storage_number[:2])
partitions = storage_number_map.get(storage_number[:2])
drive_letters = []
for partition_number, dl in partitions or ():
drive_letters.append(dl)
sort_map[dl] = storage_number.number, partition_number
ans['sort_map'][dl] = storage_number.number, partition_number
if drive_letters:
for dl in drive_letters:
ans['pnp_id_map'][dl] = devpath
ans['drive_letters'].append(dl)
ans['drive_letters'].sort(key=sort_map.get)
ans['drive_letters'].sort(key=ans['sort_map'].get)
for dl in ans['drive_letters']:
try:
if is_readonly(dl):