diff options
Diffstat (limited to 'components/drivers/i2c/i2c_dev.c')
| -rw-r--r-- | components/drivers/i2c/i2c_dev.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/components/drivers/i2c/i2c_dev.c b/components/drivers/i2c/i2c_dev.c index 4f567f8227..c30bb62a92 100644 --- a/components/drivers/i2c/i2c_dev.c +++ b/components/drivers/i2c/i2c_dev.c @@ -7,6 +7,7 @@ * Date Author Notes * 2012-04-25 weety first version * 2014-08-03 bernard fix some compiling warning + * 2021-04-20 RiceChen added support for bus clock control */ #include <rtdevice.h> @@ -66,6 +67,7 @@ static rt_err_t i2c_bus_device_control(rt_device_t dev, rt_err_t ret; struct rt_i2c_priv_data *priv_data; struct rt_i2c_bus_device *bus = (struct rt_i2c_bus_device *)dev->user_data; + rt_uint32_t bus_clock; RT_ASSERT(bus != RT_NULL); @@ -89,6 +91,14 @@ static rt_err_t i2c_bus_device_control(rt_device_t dev, return -RT_EIO; } break; + case RT_I2C_DEV_CTRL_CLK: + bus_clock = *(rt_uint32_t *)args; + ret = rt_i2c_control(bus, cmd, bus_clock); + if (ret < 0) + { + return -RT_EIO; + } + break; default: break; } |