Mercurial > ~darius > hgwebdir.cgi > pyinst
comparison usb488.py @ 11:f588f5bc834a
Add a method to determine if the device is still connected.
This is really ham strung by libusb (or the FreeBSD implementation).
| author | Daniel O'Connor <darius@dons.net.au> |
|---|---|
| date | Sat, 16 May 2009 23:33:52 +0930 |
| parents | 154dab1e474f |
| children | 5ff9130cc953 |
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| 10:154dab1e474f | 11:f588f5bc834a |
|---|---|
| 276 if result[-1] == '\n': | 276 if result[-1] == '\n': |
| 277 result = result[0:-1] | 277 result = result[0:-1] |
| 278 | 278 |
| 279 return result | 279 return result |
| 280 | 280 |
| 281 def isConnected(self): | |
| 282 """Check if the device is present""" | |
| 283 | |
| 284 # libusb makes it very hard (at least on FreeBSD) to determine if we're still connected. | |
| 285 # This is a reasonable proxy.. | |
| 286 try: | |
| 287 self.handle.getString(self.dev.iManufacturer, 100) | |
| 288 except USBError, e: | |
| 289 return False | |
| 290 | |
| 291 return True | |
| 292 |