Well, you can use the device VID and PID to select which device to open. I
use something like:
def do_d(self, args):
if self.devh is not None:
self.do_close('')
#ls
if self.devh is None:
self.devs=getdevs()
shortlist(self.devs)
dn = -1;
index = 0;
for d in self.devs:
if (d[1].idVendor == 0xFFFF and d[1].idProduct == 0x0000):
dn = index;
index = index + 1;
if(dn == -1):
return 1
self.curdev=self.devs[dn]
self.devh=self.curdev[1].open()
self.devn=dn
self.devh.setConfiguration(self.curdev[2])
self.devh.claimInterface(self.curdev[2].interfaces[0][0])
self.devh.setAltInterface(0)
On Wed, Jun 17, 2009 at 7:14 AM, Brendan Simon (eTRIX) <
brendan.si...@etrix.com.au> wrote:
> I have a device with a usb connection that presents itself as a serial
> device to operating system (OS X).
> It appears as /dev/cu.usbmodem0001 and /dev/tty.usbmodem0001 on the
> filesystem when the device is plugged in.
>
> I can successfully detect the device USB Vendor ID and Product ID using
> pyusb :)
>
> Now I have to use pyserial to talk to the device -- which I have
> successfully done by opening the serial port with a hard coded device
> filename (/dev/cu.usbmodem0001).
>
> There must be some way for me to use the pyusb information to be able to
> determine the appropriate device filename to open with pyusb.
>
> Does anyone know how to do this or have any suggestions ???
>
> Thanks, Brendan.
>
>
>
> ------------------------------------------------------------------------------
> Crystal Reports - New Free Runtime and 30 Day Trial
> Check out the new simplified licensing option that enables unlimited
> royalty-free distribution of the report engine for externally facing
> server and web deployment.
> http://p.sf.net/sfu/businessobjects
> _______________________________________________
> Pyusb-users mailing list
> Pyusb-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/pyusb-users
>
>
------------------------------------------------------------------------------
Crystal Reports - New Free Runtime and 30 Day Trial
Check out the new simplified licensing option that enables unlimited
royalty-free distribution of the report engine for externally facing
server and web deployment.
http://p.sf.net/sfu/businessobjects
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