diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/io.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h new file mode 100644 index 0000000..02009d5 --- /dev/null +++ b/arch/x86/include/asm/io.h @@ -0,0 +1,15 @@ +#ifndef ASM_X86_IO_H +#define ASM_X86_IO_H + +#include <stdint.h> + +static inline void outb(uint16_t port, uint8_t data) +{ + asm volatile ( + "out %0,%1" + : /* no output */ + : "a" (data), "d" (port) + ); +} + +#endif /* ASM_X86_IO_H */ |