Here is the third version of the patch series that adds the special quirk needed for FreeCalypso DUART28C adapter. This version of the series also includes a patch bringing the existing ftdi_determine_type() function into consistency with new usage of cur_altsetting instead of altsetting for desc.bInterfaceNumber retrieval. Mychaela N. Falconia (3): USB: serial: ftdi_sio: use cur_altsetting for consistency USB: serial: ftdi_sio: pass port to quirk port_probe functions USB: serial: ftdi_sio: add support for FreeCalypso DUART28C adapter drivers/usb/serial/ftdi_sio.c | 93 +++++++++++++++++++++++++++++++-------- drivers/usb/serial/ftdi_sio_ids.h | 1 + 2 files changed, 75 insertions(+), 19 deletions(-) -- 2.9.0 base-commit: be4c5eb267ee73ef1d70c25c6d648625e96eb477