I tried recent firmware from OpenSDA site, but neither DAPLink rev0242 nor DAPLink OpenSDA v2.2 Bootloader works for me. When using CMSIS-DAP 0226 or 0221 I see correctly exposed USB endpoints:
|__ Port 4: Dev 52, If 2, Class=CDC Data, Driver=cdc_acm, 12M
|__ Port 4: Dev 52, If 0, Class=Mass Storage, Driver=usb-storage, 12M
|__ Port 4: Dev 52, If 3, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 4: Dev 52, If 1, Class=Communications, Driver=cdc_acm, 12M
With that I can flash with OpenOCD (despite some errors). Using DAPLink firmware nothing is detected. How this firmware should work with FRDM-K64F ?
According to README.md of DAPLink project I should see at least 3 endpoints.