Interesting. Can you post the output of os.platform and os.uname on your system?

from python-usbtmc.

Here you are

os.name
'posix'

os.uname()
('FreeBSD', 'asus-u32u', '10.0-RELEASE-p1', 'FreeBSD 10.0-RELEASE-p1 #0: Tue Apr 8 06:45:06 UTC 2014 [email protected]:/usr/obj/usr/src/sys/GENERIC', 'amd64')

platform.system()
'FreeBSD'

platform.release()
'10.0-RELEASE-p1'

platform.version()
'FreeBSD 10.0-RELEASE-p1 #0: Tue Apr 8 06:45:06 UTC 2014 [email protected]:/usr/obj/usr/src/sys/GENERIC'

platform.uname()
('FreeBSD', 'asus-u32u', '10.0-RELEASE-p1', 'FreeBSD 10.0-RELEASE-p1 #0: Tue Apr 8 06:45:06 UTC 2014 [email protected]:/usr/obj/usr/src/sys/GENERIC', 'amd64', 'amd64')

/Uffe

from python-usbtmc.

Thanks. Also, what exception is it throwing?

from python-usbtmc.

Here is the exception output:

python rigol.py

Unknown error -99 None
Traceback (most recent call last):
File "rigol.py", line 17, in
instr = usbtmc.Instrument(0x1ab1, 0x0588) # Rigol DS1102D
File "/_ext.tmp/python-usbtmc.git/usbtmc/usbtmc.py", line 248, in init
self.reset()
File "/_ext.tmp/python-usbtmc.git/usbtmc/usbtmc.py", line 257, in reset
self.device.reset()
File "/_ext.tmp/python-usbtmc.git/usb/core.py", line 595, in reset
self._ctx.backend.reset_device(self._ctx.handle)
File "/_ext.tmp/python-usbtmc.git/usb/backend/libusb1.py", line 846, in reset_device
_check(self.lib.libusb_reset_device(dev_handle.handle))
File "/_ext.tmp/python-usbtmc.git/usb/backend/libusb1.py", line 572, in _check
raise USBError(_str_error[ret], ret, _libusb_errno[ret])
usb.core.USBError: [Errno None] Unknown error

from python-usbtmc.

This particular reset call has now been completely removed, so this should no longer be an issue.

from python-usbtmc.