You downloaded a 32-bit driver on a 64-bit system, or vice versa. Fix: Download the correct architecture version. For Windows 10/11 64-bit, look for x64 in the file name.
"Did you just insult me?"
struct bt_bu1_dev *dev; // 1. Allocate device struct // 2. Read USB descriptors, find bulk in/out endpoints // 3. Load firmware from /lib/firmware/bt-bu1.bin // 4. Send vendor init sequence (e.g., 0x01, 0x03 reset) // 5. Register as HCI device via hci_register_dev() return 0; bt-bu1 driver