| Eric Biederman | 6aa31cc | 2003-06-10 21:22:07 +0000 | [diff] [blame] | 1 | void smbus_read_byte(void) |
| 2 | { | ||||
| 3 | unsigned char host_status_register; | ||||
| 4 | unsigned char byte; | ||||
| 5 | int result; | ||||
| 6 | |||||
| 7 | host_status_register = __builtin_inb(0x1234); | ||||
| 8 | |||||
| 9 | /* read results of transaction */ | ||||
| 10 | byte = __builtin_inb(0x4567); | ||||
| 11 | |||||
| 12 | result = byte; | ||||
| 13 | if (host_status_register != 0x02) { | ||||
| 14 | result = -1; | ||||
| 15 | } | ||||
| 16 | } | ||||