Cannot use usb-host on Mac OS

Usb-host will not work on Mac OS 10.15.  Qemu runs, though it gives these errors and the drive does not show up.  Also, when Qemu is starting the drive ejects and remounts twice. Qemu built with ./configure --target-list=i386-softmmu,x86_64-softmmu --enable-sdl --disable-cocoa --enable-sdl-image.

qemu-system-i386 image.qcow -usb -device usb-kbd  -device usb-host,vendorid=0x0781,productid=0x5571
libusb: error [darwin_claim_interface] USBInterfaceOpen: another process has device opened for exclusive access
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] USBInterfaceOpen: another process has device opened for exclusive access
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found
libusb: error [darwin_claim_interface] interface not found