The Fintek F81532A/534A/535/536 is USB-to-2/4/8/12 serial ports device and the serial port is default disabled when plugin computer. The part number is a bit same with F81532/534, but F81534A series UART core is enhanced from F81232, not F81532/534. The IC is contains devices as following: 1. HUB (all devices is connected with this hub) 2. GPIO/Control device. (enable serial port and control all GPIOs) 3. serial port 1 to x (2/4/8/12) It's most same with F81232, the UART device is difference as follow: 1. TX/RX bulk size is 128/512bytes 2. RX bulk layout change: F81232: [LSR(1Byte)+DATA(1Byte)][LSR(1Byte)+DATA(1Byte)]... F81534A:[LEN][Data.....][LSR] We'll try to do some code refacting before add F81534A series. Ji-Ze Hong (Peter Hong) (7): USB: serial: f81232: Extract LSR handler USB: serial: f81232: Add tx_empty function USB: serial: f81232: Use devm_kzalloc USB: serial: f81232: Add F81534A support USB: serial: f81232: Set F81534A serial port with RS232 mode USB: serial: f81232: Add generator for F81534A USB: serial: f81232: Add gpiolib to GPIO device drivers/usb/serial/f81232.c | 604 ++++++++++++++++++++++++++++++++++-- 1 file changed, 570 insertions(+), 34 deletions(-) -- 2.17.1
