Merge pull request #3141 from adafruit/cp_vid_pid

Author: BlitzCityDIY

CircuitPython_USB_VID_PID_Reporter/code.py

@@ -0,0 +1,110 @@
+# SPDX-FileCopyrightText: 2025 Liz Clark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+"""
+CircuitPython USB VID/PID Reporter
+Feather RP2040 USB Host with OLED FeatherWing
+
+"""
+
+import usb.core
+import keypad
+import board
+import displayio
+import terminalio
+
+from adafruit_display_text import label
+from i2cdisplaybus import I2CDisplayBus
+
+import adafruit_displayio_sh1107
+
+displayio.release_displays()
+
+# init display
+i2c = board.I2C()
+display_bus = I2CDisplayBus(i2c, device_address=0x3C)
+display = adafruit_displayio_sh1107.SH1107(display_bus, width=128, height=64)
+
+# text groups
+main = displayio.Group()
+extra_info = displayio.Group()
+groups = [main, extra_info]
+display.root_group = main
+
+# text objects for title, VID and PID
+title_text = label.Label(terminalio.FONT, text="USB VID/PID Reporter", color=0xFFFFFF, x=5, y=15)
+main.append(title_text)
+vid_text = label.Label(terminalio.FONT, text="VID:", color=0xFFFFFF, x=5, y=35)
+main.append(vid_text)
+pid_text = label.Label(terminalio.FONT, text="PID:", color=0xFFFFFF, x=5, y=50)
+main.append(pid_text)
+
+# text objects for manufacturer and product info
+# added to secondary group
+man_header = label.Label(terminalio.FONT, text="Manufacturer:", color=0xFFFFFF, x=5, y=10)
+extra_info.append(man_header)
+man_text = label.Label(terminalio.FONT, text=" ", color=0xFFFFFF, x=5, y=25)
+extra_info.append(man_text)
+prod_header = label.Label(terminalio.FONT, text="Product:", color=0xFFFFFF, x=5, y=40)
+extra_info.append(prod_header)
+prod_text = label.Label(terminalio.FONT, text=" ", color=0xFFFFFF, x=5, y=55)
+extra_info.append(prod_text)
+
+# init A, B and C buttons on FeatherWing as keypad keys
+keys = keypad.Keys((board.D5,board.D6,board.D9,), value_when_pressed=False, pull=True)
+
+# variables
+last_pid = 0x0000 # store last PID
+last_vid = 0x0000 # store last VID
+usb_dev = False # is there a USB device?
+first_run = True # first run through loop
+group_index = 0 # display group index
+while True:
+    event = keys.events.get()
+    if event:
+        # if any button is pressed, toggle graphics group
+        if event.pressed:
+            group_index = (group_index + 1) % 2
+            display.root_group = groups[group_index]
+    # find connected devices
+    devices = list(usb.core.find(find_all=True))
+    # if no device, reset states and text objects
+    if not devices and usb_dev or first_run:
+        print("no device")
+        pid_text.text = "PID:"
+        vid_text.text = "VID:"
+        man_text.text = " "
+        prod_text.text = " "
+        usb_dev = False
+        first_run = False
+    else:
+        if not usb_dev:
+            first_run = False
+            for device in devices:
+                try:
+                    # if its the same device, don't scan again
+                    if (last_pid == hex(device.idProduct) and
+                        last_vid == hex(device.idVendor) and usb_dev):
+                        break
+                    # new device!
+                    usb_dev = True
+                    # get PID, VID, manufacturer and product
+                    # update text elements
+                    print("pid", hex(device.idProduct))
+                    last_pid = hex(device.idProduct)
+                    pid_text.text = f"PID: {last_pid}"
+                    print("vid", hex(device.idVendor))
+                    last_vid = hex(device.idVendor)
+                    vid_text.text = f"VID: {last_vid}"
+                    print("man", device.manufacturer)
+                    # only update manufacturer and product if info is known
+                    if device.manufacturer is not None:
+                        man_text.text = device.manufacturer
+                    print("product", device.product)
+                    if device.product is not None:
+                        prod_text.text = device.product
+                    print()
+                # if there's any error reading info from a USB device, continue
+                except usb.core.USBError:
+                    print("got an error, continuing..")
+                    continue