def openDevice(self):
try:
# open in non-blocking mode
self.devfp = open(self.rawdevice, 'r+b')
fd = self.devfp.fileno()
flag = fcntl.fcntl(fd, fcntl.F_GETFL)
fcntl.fcntl(fd, fcntl.F_SETFL, flag | os.O_NONBLOCK)
self.device = hidraw.HIDRaw(self.devfp)
self.log.debug("Connected to %s", self.rawdevice)
return True
except Exception as e:
self.log.error("Unable to open %s: %s", self.rawdevice, e)
return False
def open_hiddevice(hid_id, dev_path=None):
"""
Open the device representing the mouse. If dev_path is None, it tries to
find it.
"""
if dev_path is None:
dev_path = find_device_path(hid_id)
try:
device = hidraw.HIDRaw(open(dev_path, 'w+'))
except PermissionError:
print("You don't have write access to %s." % (dev_path))
print("""
Run this script with sudo or ensure that your user belongs to the
same group as the device and you have write access. For instance:
sudo groupadd rival
sudo chown $(ls -l %s | cut -d ' ' -f 4):rival %s
sudo adduser $(whoami) rival
sudo chmod g+w %s
And maybe create an udev rule like (as root):
echo 'KERNEL=="hidraw*", GROUP="rival"' > /etc/10-local-rival.rules
udevadm trigger
""" % (dev_path, dev_path, dev_path))
sys.exit(1)
return device
def open_device(dev_path=None):
if dev_path is None:
dev_path = find_device_path()
return hidraw.HIDRaw(open(dev_path, 'w+'))