add gpio bit read function

1 files changed, 4 insertions, 0 deletions

diff --git a/bus.h b/bus.h
index 6bb3e83..f13f203 100644
--- a/bus.h
+++ b/bus.h
@@ -27,9 +27,13 @@
 #define GPMCACCESSTIME 0x07
 
 void bus_init(void); // call this before doing anything
+
+int bus_getpin(int pin);
 void bus_setpin(int pin, int value); // set the value of a pin
+
 void bus_writebyte(uint8_t address, uint8_t data); // write a byte to the bus
 uint8_t bus_readbyte(uint8_t address); // read a pin from the bus
+
 void bus_shutdown(void); // shutdown the bus
 
 #endif /* BUS_H_ */