Compile FTDI kernel module

linux linux-kernel serial-port kernel-module ftdi
user3215598 picture user3215598 · Jan 20, 2014 · Viewed 10.1k times · Source

I'm trying to add the usb to serial port driver to my arch linux arm device, and I noticed that the kernel source tree already includes the source files for the FTDI driver, located in:

drivers/usb/serial, there exists the ftdi_sio.c and ftdi_sio.h files.

When I navigate to kernel/drivers, I cannot find the ftdi_sio.ko module anywhere.

How do I build the ftdi kernel module and include it to boot so I can have usb to serial port capability on my arch linux arm?

Answer

Mali picture Mali · Jan 21, 2014

I suppose you have the kernel source tree (from your distro package manager) on your arm device and you don't cross-compile :

make menuconfig

Navigate to : Device Drivers -> USB Support -> USB Serial Converter Support

And choose 'M'odule for USB FTDI Single Port Serial Driver

Exit, save changes and 

make M=drivers/usb/serial/
make modules_install

Related questions

Increasing the maximum number of TCP/IP connections in Linux

I am programming a server and it seems like my number of connections is being limited since my bandwidth isn't being saturated even when I've set the number of connections to "unlimited". How can I increase or eliminate a maximum …

Read More
What is ":-!!" in C code?

I bumped into this strange macro code in /usr/include/linux/kernel.h: /* Force a compilation error if condition is true, but also produce a result (of value 0 and type size_t), so the expression can be used e.g. …

Read More
How do the likely/unlikely macros in the Linux kernel work and what is their benefit?

I've been digging through some parts of the Linux kernel, and found calls like this: if (unlikely(fd < 0)) { /* Do something */ } or if (likely(!err)) { /* Do something */ } I've found the definition of them: #define likely(x) __builtin_expect((x),1) #define …

Read More