From 046a1844142dc9ffa7c95f0761bfa11272480adf Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Mon, 31 Mar 2014 18:26:30 +0200 Subject: smbus: return -1 if nothing found at the given address Signed-off-by: Paolo Bonzini Acked-by: Michael S. Tsirkin Reviewed-by: Andreas Färber Signed-off-by: Michael S. Tsirkin --- include/hw/i2c/smbus.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'include/hw/i2c') 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); -- cgit v1.2.3-55-g7522