bm05ev2 01 is likely a marketing model number, not the chipset name. You need to find the VID/PID (Vendor ID / Product ID).
How to find it:
Report these IDs to search for the exact driver.
Published: October 15, 2021 (Updated Retrospective for Archival Accuracy)
If your device is from Lenovo, Dell, HP, ASUS, etc.: