adafruit-mirror/Adafruit_Learning_System_Guides
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

ignore no endpoint failures from mouse.read

Browse source
This commit is contained in:
RetiredWizard 2025-08-19 16:32:30 -04:00
parent 59fe2fb599
commit 8f89fe23c1
1 changed files with 19 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

29
Metro/Metro_RP2350_Minesweeper/code.py
View file

@ -122,12 +122,12 @@ mouse = None
# wait a second for USB devices to be ready
time.sleep(1)
#good_devices = False
#while not good_devices:
# for device in usb.core.find(find_all=True):
# if device.manufacturer is not None:
# good_devices = True
# break
good_devices = False
while not good_devices:
for device in usb.core.find(find_all=True):
if device.manufacturer is not None:
good_devices = True
break
# scan for connected USB devices
for device in usb.core.find(find_all=True):
# print information about the found devices
@ -155,11 +155,6 @@ for device in usb.core.find(find_all=True):
# Try to read some data with a short timeout
data = mouse.read(mouse_endpt, buf, timeout=100)
print(f"Mouse test read successful: {data} bytes - {buf}")
# without this subsequent reads sometimes can't find the endpoint?
# I've never seen the Flush mouse queue print so it must just need the extra read
if mouse.read(mouse_endpt, buf, timeout=10) > 0:
print(f"Flush mouse queue: {buf}")
break
except usb.core.USBTimeoutError:
# Timeout is normal if mouse isn't moving
@ -291,7 +286,19 @@ while True:
try:
# try to read data from the mouse, small timeout so the code will move on
# quickly if there is no data
while True:
try:
# read data from the mouse endpoint
data_len = mouse.read(mouse_endpt, buf, timeout=10)
if data_len > 0:
break
except usb.core.USBTimeoutError:
# if we get a timeout error, it means there is no data available
pass
except usb.core.USBError as exc:
# if we get a USBError, it may mean the mouse is not ready yet
pass
left_button = buf[0] & 0x01
right_button = buf[0] & 0x02