diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2014-03-31 18:26:30 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2014-05-07 19:14:46 +0300 |
| commit | 046a1844142dc9ffa7c95f0761bfa11272480adf (patch) | |
| tree | 280f41c1a069878353cd2b63ae607d19927b9a19 /include/hw/i2c | |
| parent | 285364e96818c1a5f715fe256557b4a718222bc6 (diff) | |
smbus: return -1 if nothing found at the given address
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/hw/i2c')
| -rw-r--r-- | include/hw/i2c/smbus.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/include/hw/i2c/smbus.h b/include/hw/i2c/smbus.h index 285d3b5de3..544bbc1957 100644 --- a/include/hw/i2c/smbus.h +++ b/include/hw/i2c/smbus.h @@ -66,16 +66,16 @@ struct SMBusDevice { }; /* Master device commands. */ -void smbus_quick_command(I2CBus *bus, uint8_t addr, int read); +int smbus_quick_command(I2CBus *bus, uint8_t addr, int read); int smbus_receive_byte(I2CBus *bus, uint8_t addr); -void smbus_send_byte(I2CBus *bus, uint8_t addr, uint8_t data); +int smbus_send_byte(I2CBus *bus, uint8_t addr, uint8_t data); int smbus_read_byte(I2CBus *bus, uint8_t addr, uint8_t command); -void smbus_write_byte(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t data); +int smbus_write_byte(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t data); int smbus_read_word(I2CBus *bus, uint8_t addr, uint8_t command); -void smbus_write_word(I2CBus *bus, uint8_t addr, uint8_t command, uint16_t data); +int smbus_write_word(I2CBus *bus, uint8_t addr, uint8_t command, uint16_t data); int smbus_read_block(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t *data); -void smbus_write_block(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t *data, - int len); +int smbus_write_block(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t *data, + int len); void smbus_eeprom_init(I2CBus *smbus, int nb_eeprom, const uint8_t *eeprom_spd, int size); |