Jane Chen wrote: > > Thank you for your help. However, I still got pywintypes.error: (50, > "DeviceIoControl", "The request is not supported"). > > I added the following codes to winioctlcon.py <http://winioctlcon.py/>.
You should not probably modify the standard library files, because you'll lose the change when you upgrade. You should add this to your own file. > > I added the following codes to my script > import win32con, winioctlcon > """ > Definition of buffer used with _SFFDISK_QUERY_DEVICE_PROTOCOL_DATA: > typedef struct _SFFDISK_QUERY_DEVICE_PROTOCOL_DATA { > USHORT Size; > USHORT Reserved; > GUID ProtocolGUID; > } > """ > buf_fmt='HHs0L' > buf_size=struct.calcsize(buf_fmt) Your buf_fmt is not correct. GUID is not a string, it is a 16-byte binary GUID. You want 'HHLLLL' -- the buf_size should be 20. Plus, you really don't want "struct" to unpack the GUID. It doesn't know that type. However, that's not your fundamental problem. My guess is that you are trying to call this for an SD disk that is plugged into a USB adapter. If so, that won't work, because the operating system doesn't see it as an SD disk, it sees it as a USB disk. It has to be an SD drive connected directly to a PCI bus, and those are usually only found on laptops. The error message is exactly right -- the request is not supported. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. _______________________________________________ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32