Re: Getting USB volume serial number from inserted device on OSX
On 5 April 2013 06:20, Tim Roberts t...@probo.com wrote: John Nagle na...@animats.com wrote: That would be useful to have as a portable function for all USB devices. Serial port devices are particularly annoying, because their port number is somewhat random when there's more than one, and changes on hot-plugging. There is no portable solution. Every operating system handles this kind of this very differently. Remember, the operating system abstractions are all designed to hide this from you. When you open a serial port or an audio device or use a file system, you aren't supposed to KNOW that there is a USB device behind it Indeed. Which means I have a working solution under Linux, but I am struggling to find one under OS X. Looks like I might have to resort to just parsing the USB tree until I find the device that was inserted. -- ./Sven -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting USB volume serial number from inserted device on OSX
On 4/2/2013 3:18 PM, Sven wrote:
Hello,
I am using Python 2.7 with pyobjc on Lion and NSNotification center to
monitor any inserted USB volumes. This works fine.
I've also got some ideas how to get a device's serial number, but these
involve just parsing all the USB devices ('system_profiler SPUSBDataType'
command). However I'd like to specifically query the inserted device only
(the one creating the notification) rather than checking the entire USB
device list. The latter seems a little inefficient and wrong.
That would be useful to have as a portable function for all USB
devices. Serial port devices are particularly annoying, because their
port number is somewhat random when there's more than one, and changes
on hot-plugging.
John Nagle
--
http://mail.python.org/mailman/listinfo/python-list
Re: Getting USB volume serial number from inserted device on OSX
John Nagle na...@animats.com wrote: That would be useful to have as a portable function for all USB devices. Serial port devices are particularly annoying, because their port number is somewhat random when there's more than one, and changes on hot-plugging. There is no portable solution. Every operating system handles this kind of this very differently. Remember, the operating system abstractions are all designed to hide this from you. When you open a serial port or an audio device or use a file system, you aren't supposed to KNOW that there is a USB device behind it. -- Tim Roberts, t...@probo.com Providenza Boekelheide, Inc. -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting USB volume serial number from inserted device on OSX
Apologies. The main app is in python, and I would like to know any alternative methods to do this in Python on OS X. Doesn't have to use the OS X APIs. I'll try elsewhere too though. Thanks On 3 April 2013 00:37, Ned Deily n...@acm.org wrote: In article CAEH=cXV0DJa6CCZ4T1RvL2L1g7D_mdDF4=52vugcm5mwt18...@mail.gmail.com, Sven sven...@gmail.com wrote: I am using Python 2.7 with pyobjc on Lion and NSNotification center to monitor any inserted USB volumes. This works fine. [...] Since your question really is about OS X APIs and not Python or even PyObjC, you're more likely to get a meaningful answer elsewhere. Try StackOverflow or one of the OS X lists. -- Ned Deily, n...@acm.org -- http://mail.python.org/mailman/listinfo/python-list -- ./Sven -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting USB volume serial number from inserted device on OSX
In article CAEH=cXV0DJa6CCZ4T1RvL2L1g7D_mdDF4=52vugcm5mwt18...@mail.gmail.com, Sven sven...@gmail.com wrote: I am using Python 2.7 with pyobjc on Lion and NSNotification center to monitor any inserted USB volumes. This works fine. [...] Since your question really is about OS X APIs and not Python or even PyObjC, you're more likely to get a meaningful answer elsewhere. Try StackOverflow or one of the OS X lists. -- Ned Deily, n...@acm.org -- http://mail.python.org/mailman/listinfo/python-list
