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BTSession: Additional change to pretend LEGO EV3 with LEGO Hub

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The previous commit tweaked the class IDs returned from the LEGO Hub as
that of LEGO EV3. On top of that, it is required to tweak the class ID
to search and discover for bluetooth.DeviceDiscoverer API.

Also, add some more debug prints to track BT device discovery.

Signed-off-by: Shin'ichiro Kawasaki <kawasaki@juno.dti.ne.jp>
This commit is contained in:
Shin'ichiro Kawasaki
2021-11-21 14:07:15 +09:00
parent 3ffbde35b1
commit 3cf61a145b
1 changed files with 8 additions and 2 deletions
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10
pyscrlink/scratch_link.py
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@@ -188,7 +188,13 @@ class BTSession(Session):
self.ping_time = None self.ping_time = None
def discover(self): def discover(self):
discoverer = self.BTDiscoverer(self.major_device_class, self.minor_device_class) major = self.major_device_class
minor = self.minor_device_class
if major == 8 and minor == 1:
logger.info(f"Search LEGO Hub instead of LEGO EV3")
minor = 4
logger.debug(f"BT discover: class={major}/{minor}")
discoverer = self.BTDiscoverer(major, minor)
discoverer.find_devices(lookup_names=True) discoverer.find_devices(lookup_names=True)
while self.session.status == self.session.DISCOVERY and not discoverer.done and not self.cancel_discovery: while self.session.status == self.session.DISCOVERY and not discoverer.done and not self.cancel_discovery:
readable = select.select([discoverer], [], [], 0.5)[0] readable = select.select([discoverer], [], [], 0.5)[0]
@@ -206,7 +212,7 @@ class BTSession(Session):
def run(self): def run(self):
while self.session.status != self.session.DONE: while self.session.status != self.session.DONE:
logger.debug("loop in BT thread") logger.debug(f"loop in BT thread: session status={self.session.status}")
current_time = int(round(time.time())) current_time = int(round(time.time()))
if self.session.status == self.session.DISCOVERY and not self.cancel_discovery: if self.session.status == self.session.DISCOVERY and not self.cancel_discovery: