diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/io.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h index 9cb78e41ec..f020510569 100644 --- a/arch/x86/include/asm/io.h +++ b/arch/x86/include/asm/io.h @@ -12,6 +12,8 @@ #include <asm/byteorder.h> +#define IO_SPACE_LIMIT 0xffff + static inline void outb(unsigned char value, int port) { asm volatile("outb %b0, %w1" : : "a"(value), "Nd"(port)); |