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/* dfu.c */
extern const struct usb_dfu_descriptor dfu_function;
extern const struct usb_interface_descriptor dfu_iface;
extern int dfu_control_request(usbd_device *usbd_dev, struct usb_setup_data *req, uint8_t **buf, uint16_t *len, void (**complete)(usbd_device *usbd_dev, struct usb_setup_data *req));
/* mouse.c */
extern const struct usb_endpoint_descriptor mouse_endpoint;
extern const struct usb_interface_descriptor mouse_iface;
extern void mouse_get_descriptor(uint8_t **buf, uint16_t *len);
extern void mouse_test(void);
/* keyboard.c */
extern const struct usb_endpoint_descriptor keyboard_endpoint;
extern const struct usb_interface_descriptor keyboard_iface;
extern void keyboard_get_descriptor(uint8_t **buf, uint16_t *len);
extern void keyboard_test(void);
/* main.c */
extern void sys_tick_handler(void);
extern int main(void);
/* usb.c */
extern const struct usb_device_descriptor dev;
extern const struct usb_interface ifaces[];
extern const struct usb_config_descriptor config;
extern usbd_device *usbd_dev;
extern void usb_set_config(usbd_device *usbd_dev, uint16_t wValue);
extern void usb_init(void);
extern void usb_run(void);
/* tablet.c */
extern const struct usb_endpoint_descriptor tablet_endpoint;
extern const struct usb_interface_descriptor tablet_iface;
extern void tablet_get_descriptor(uint8_t **buf, uint16_t *len);
extern void tablet_test(void);
/* usart.c */
extern void usart1_isr(void);
extern int _write(int file, char *ptr, int len);
extern void usart_queue(uint8_t d);
extern void usart_init(void);
/* kvm.c */
extern void kvm_dispatch(void);
extern void kvm_recv(uint8_t d);
/* ring.c */
extern void ring_init(ring_t *r, uint8_t *buf, size_t len);
extern int ring_write_byte(ring_t *r, uint8_t c);
extern int ring_read_byte(ring_t *r, uint8_t *c);
extern int ring_write(ring_t *r, uint8_t *buf, size_t len);
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