Fix Windows 7 detection

[bridadan]

This should fix #332.

The issue was Windows 7 PCs don't have a "volume" service. I have switched the implementation to use the "Disk" service instead. It seems to work well on Windows 10 and Windows 7.

@toyowata Would it be possible for you to test this when you get a chance? I'll be doing my own tests on my Japanese Windows 7 VM, but it'd be good to verify this on your hardware as well.

[coveralls]

Coverage increased (+0.2%) to 78.287% when pulling c228d87 on bridadan:fix_windows_7 into 74979f5 on ARMmbed:master.

[theotherjimmy]

Changes look fine to me.

[toyowata]

@bridadan
Great, thanks. It works on the Windows 7.

PS C:\test\mbed-ls> mbed ls
mbed-ls (#284beb31959e)
PS C:\test\mbed-ls> pip install -U .
Processing c:\test\mbed-ls
Requirement already up-to-date: PrettyTable>=0.7.2 in c:\python27\lib\site-packages (from mbed-ls==1.4.3)
Requirement already up-to-date: fasteners in c:\python27\lib\site-packages (from mbed-ls==1.4.3)
Requirement already up-to-date: appdirs>=1.4 in c:\python27\lib\site-packages (from mbed-ls==1.4.3)
Requirement already up-to-date: monotonic>=0.1 in c:\python27\lib\site-packages (from fasteners->mbed-ls==1.4.3)
Requirement already up-to-date: six in c:\python27\lib\site-packages (from fasteners->mbed-ls==1.4.3)
Installing collected packages: mbed-ls
  Running setup.py install for mbed-ls ... done
Successfully installed mbed-ls-1.4.3
You are using pip version 9.0.1, however version 10.0.1 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.
PS C:\test\mbed-ls> mbedls --debug
DEBUG:mbedls.main:mbed-ls ver. 1.4.3
DEBUG:mbedls.main:host: ('nt', 'Windows', '7', '6.1.7601', 'win32')
WARNING:mbedls.platform_database:Error loading database C:\Users\toywat01\AppData\Local\mbedls\mbedls\platforms.json: Platform Database is out of date; Recreating
DEBUG:mbedls.lstools_win7:_iter_vals <PyHKEY object at 0x02B7B920>
DEBUG:mbedls.lstools_win7:Mount point E: found for volume _??_USBSTOR#Disk&Ven_MBED&Prod_VFS&Rev_0.1#550000000fb1f33300000000000000000000000097969902&0#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}
DEBUG:mbedls.lstools_win7:Fetching mounted devices from disk service registry entry
DEBUG:mbedls.lstools_win7:_iter_vals <PyHKEY object at 0x02B7B920>
DEBUG:mbedls.lstools_win7:Fetching usb storage devices from USBSTOR service registry entry
DEBUG:mbedls.lstools_win7:_iter_vals <PyHKEY object at 0x02B7B920>
DEBUG:mbedls.lstools_win7:target_id_usb_id -> mount_point mapping: {u'550000000fb1f33300000000000000000000000097969902': 'E:'}
DEBUG:mbedls.lstools_win7:Device SYSTEM\CurrentControlSet\Enum\USB\VID_0D28&PID_0204\550000000fb1f33300000000000000000000000097969902 did not have a "ParentIdPrefix" key, sticking with 550000000fb1f33300000000000000000000000097969902 as entry key string
DEBUG:mbedls.lstools_win7:Composite device subdevice key SYSTEM\CurrentControlSet\Enum\USB\VID_0D28&PID_0204&MI_02 was not found, skipping
DEBUG:mbedls.lstools_win7:Unknown capabilities from the following ids: [u'usb\\class_03&subclass_00&prot_00', u'usb\\class_03&subclass_00', u'usb\\class_03']
DEBUG:mbedls.lstools_win7:Composite device subdevice key SYSTEM\CurrentControlSet\Enum\USB\VID_0D28&PID_0204&MI_04 was not found, skipping
DEBUG:mbedls.lstools_base:Candidates for display [{'mount_point': 'E:', 'serial_port': u'COM38', 'target_id_usb_id': u'550000000fb1f33300000000000000000000000097969902'}]
DEBUG:mbedls.lstools_win7:Mount point E: is ready
DEBUG:mbedls.lstools_base:Found target id 550000000fb1f33300000000000000000000000097969902 in htm line window.location.replace("https://mbed.org/device/?code=550000000fb1f33300000000000000000000000097969902?version=0243?target_id=00000000000000000000000000000000");

DEBUG:mbedls.lstools_base:Found htm target id, 550000000fb1f33300000000000000000000000097969902, for usb target id 550000000fb1f33300000000000000000000000097969902
+---------------+----------------------+-------------+-------------+--------------------------------------------------+-----------------+
| platform_name | platform_name_unique | mount_point | serial_port | target_id                                        | daplink_version |
+---------------+----------------------+-------------+-------------+--------------------------------------------------+-----------------+
| RZ_A1H        | RZ_A1H[0]            | E:          | COM38       | 550000000fb1f33300000000000000000000000097969902 | 0243            |
+---------------+----------------------+-------------+-------------+--------------------------------------------------+-----------------+
DEBUG:mbedls.main:Return code: 0
PS C:\test\mbed-ls>

[bridadan]

Awesome @toyowata, sorry for breaking it 😆