On 25/11/2011 22:20, Brendan Simon (eTRIX) wrote:
On 26/11/11 12:12 AM, David Hughes wrote:
On 25/11/2011 11:22, Brendan Simon (eTRIX) wrote:
Anyone know how to retrieve the unique serial number of a usb storage
device using python on OS X ??
How about using
system_profiler SPUSBDataType
I treid the system_profiler and got the following results when I plugged
a couple of usb flash sticks in.
I couldn't see anything that resembles a unique usb storage device
serial number :( I think it is supposed to be a 12 digit (hex) number.
Either system_profiler doesn't report it, or these devices don't have
unique serial numbers (unlikely), or I am missing something (not unlikely).
Any thoughts ??
Strange, I just tried it here and got a serial number as usual (OS X
10.7.2 and also 10.6.8):
STORE N GO:
Capacity: 4 GB (4,001,366,016 bytes)
Removable Media: Yes
Detachable Drive: Yes
BSD Name: disk1
Product ID: 0x3623
Vendor ID: 0x13fe (Phison Electronics Corp.)
Version: 1.10
Serial Number: 079A1111814F57E3
Speed: Up to 480 Mb/sec
Manufacturer: Verbatim
Location ID: 0xfa130000 / 6
Current Available (mA): 500
Current Required (mA): 200
Partition Map Type: MBR (Master Boot Record)
S.M.A.R.T. status: Not Supported
Volumes:
DEVELOPER:
Capacity: 4 GB (3,997,237,248 bytes)
Available: 3.76 GB (3,759,636,480 bytes)
Writable: Yes
File System: MS-DOS FAT32
BSD Name: disk1s1
Mount Point: /Volumes/DEVELOPER
Content: DOS_FAT_32
To check if your device does have a serial number can you run the
attached python script using Windows?
The above device reports:
USB Device Id is USB\VID_13FE&PID_3623\079A1111814F57E3 (VBscript)
--
Regards
David Hughes
Forestfield Software
import sys, os
def usbid_script(usbstring=''):
""" Return True if usbid string matches (any) USB mass storage device
Information is obtained from WMI via a VBscript that is run by Windows
CScript.exe
"""
script = 'temp_script.vbs'
fi = open(script, 'w')
s = [ 'Set wbemServices = GetObject("winmgmts:")\n',
'Set wbemObjectSet = wbemServices.InstancesOf("Win32_PnPEntity")\n',
'For Each wbemObject In wbemObjectSet\n',
'If wbemObject.Name = "USB Mass Storage Device" Then\n',
'WScript.Echo wbemObject.PNPDeviceID\n',
'End If\n',
'Next\n' ]
fi.writelines(s)
fi.close()
usb_isok = False
script_error = False
numlines = 0
fo = os.popen('CScript %s //NoLogo' % script , 'r')
for device in fo.readlines():
numlines += 1
script_error = (device.lower().find('error') >= 0)
if usbstring:
usb_isok = compare_strings(usbstring, device.strip(), 2)
if usb_isok: break
else:
print 'USB Device Id is %s (VBscript)' % device.strip()
fo.close()
os.remove(script)
if script_error or numlines == 0:
usb_isok = None # script failed
return usb_isok
usbid_script('')
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