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smbus: allow returning an error from reads

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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>
This commit is contained in:
Paolo Bonzini 2014-03-31 18:26:29 +02:00 • committed by Michael S. Tsirkin
parent aa93200b88
commit 285364e968
2 changed files with 6 additions and 6 deletions
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6
include/hw/i2c/smbus.h
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@ -67,11 +67,11 @@ struct SMBusDevice {
/* Master device commands. */
void smbus_quick_command(I2CBus *bus, uint8_t addr, int read);
uint8_t smbus_receive_byte(I2CBus *bus, uint8_t addr);
int smbus_receive_byte(I2CBus *bus, uint8_t addr);
void smbus_send_byte(I2CBus *bus, uint8_t addr, uint8_t data);
uint8_t smbus_read_byte(I2CBus *bus, uint8_t addr, uint8_t command);
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);
uint16_t smbus_read_word(I2CBus *bus, uint8_t addr, uint8_t command);
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_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,