I found some fw files
https://github.com/adafruit/rpi-firmware/blob/master/firmware/ti_3410.fw
root@aad8a1b:/usr/src/app# wget https://github.com/TI-OpenLink/firmwares/raw/master/ti_3410.fw
… snipped …
root@aad8a1b:/usr/src/app# insmod ti_3410.fw
insmod: ERROR: could not insert module ti_3410.fw: Invalid module format
root@aad8a1b:/usr/src/app# modprobe ti_3410
modprobe: FATAL: Module ti_3410 not found.
root@aad8a1b:/usr/src/app# insmod ti_3410
insmod: ERROR: could not load module ti_3410: No such file or directory