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authorPaolo Bonzini <pbonzini@redhat.com>2014-03-31 18:26:29 +0200
committerMichael S. Tsirkin <mst@redhat.com>2014-05-07 19:14:41 +0300
commit285364e96818c1a5f715fe256557b4a718222bc6 (patch)
treea9779bdc44fa5804d77657d2c4ef29e79b00e9a0 /include/hw/i2c
parentaa93200b88fb1071eaf21bf766711762ed4630e2 (diff)
downloadqemu-285364e96818c1a5f715fe256557b4a718222bc6.tar.gz
smbus: allow returning an error from reads
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.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/hw/i2c/smbus.h b/include/hw/i2c/smbus.h
index 63f0cc4788..285d3b5de3 100644
--- a/include/hw/i2c/smbus.h
+++ b/include/hw/i2c/smbus.h
@@ -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,