Python code conventions

Python code follows PEP 8.

Naming conventions:

Module names are short and all lowercase; eg pyb, stm.
Class names are CamelCase, with abreviations all uppercase; eg I2C, not I2c.
Function and method names are all lowercase with words separated by a single underscore as necessary to improve readability; eg mem_read.
Constants are all uppercase with words separated by a single underscore; eg GPIO_IDR.

C code conventions

When writing new C code, please adhere to the following conventions.

White space:

Expand tabs to 4 spaces.
Don't leave trailing whitespace at the end of a line.
For control blocks (if, for, while), put 1 space between the keyword and the opening parenthesis.
Put 1 space after a comma, and 1 space around operators.

Braces:

Use braces for all blocks, even no-line and single-line pieces of code.
Put opening braces on the end of the line it belongs to, not on a new line.
For else-statements, put the else on the same line as the previous closing brace.

Header files:

Try to stick to the Plan 9 header style, where header files do not include other header files.
Don't protect a header file from multiple inclusion with #if directives.

Type names and declarations:

Braces and spaces:

int foo(int x, int y) {
    if (x < y) {
        foo(y, x);
    } else {
        foo(x + 1, y - 1);
    }

    for (int i = 0; i < x; i++) {
    }
}

Type declarations:

typedef struct _my_struct_t {
    int member;
    void *data;
} my_struct_t;