diff options
Diffstat (limited to 'hw/i2c/core.c')
| -rw-r--r-- | hw/i2c/core.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/hw/i2c/core.c b/hw/i2c/core.c index bd8f16759d..abd4c4cddb 100644 --- a/hw/i2c/core.c +++ b/hw/i2c/core.c @@ -88,7 +88,12 @@ int i2c_bus_busy(I2CBus *bus) return !QLIST_EMPTY(&bus->current_devs); } -/* Returns non-zero if the address is not valid. */ +/* + * Returns non-zero if the address is not valid. If this is called + * again without an intervening i2c_end_transfer(), like in the SMBus + * case where the operation is switched from write to read, this + * function will not rescan the bus and thus cannot fail. + */ /* TODO: Make this handle multiple masters. */ int i2c_start_transfer(I2CBus *bus, uint8_t address, int recv) { |