Function mmal_sys::vcos_log_set_level_all

pub unsafe extern "C" fn vcos_log_set_level_all(levels: *mut c_char)

Set the logging levels for many categories at once.

Set lots of categorys from a string cat:lev,cat:lev This can be used at startup time to set a bunch of category levels from a single string. Used with C(vcos_logging_level)