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extended_serial

Implemented By

text-console

Description

This interface extends the SERIAL_DEVICE_INTERFACE with a write_at() function. It is similar to the write() function of the mentioned interface, but accepts an on-screen character position. This interface is implemented by text consoles allowing them to be connected to text oriented frame buffers, such as VGA in text mode.

typedef struct {
        void (*write_at)(conf_object_t *obj,
                         int value, int x, int y, int fg, int bg);
        void (*graphics_mode)(conf_object_t *obj, int in_graphics_mode);
} extended_serial_interface_t;

#define EXTENDED_SERIAL_INTERFACE "extended-serial"

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