3 replies

How can I resolve the "Failed to acquire I2C client" error in my kernel space I2C DAC implementation

@Middleware & OS
How can I use the I2C bus(DAC) in kernel space, I have verified that the I2C adapter and address in kernel space, I expected to get a

Successfully acquired i2c client

Successfully acquired i2c client

message in my log but still getting the error

Failed to acquire I2C client

Failed to acquire I2C client

Here's my code

struct i2c_client *client;
struct i2c_adapter *adapter = i2c_get_adapter(1);
struct i2c_board_info info;
strlcpy(info.type, "i2c-dac", I2C_NAME_SIZE);
strlcpy(info.name, "My DAC", I2C_NAME_SIZE);
client = i2c_new_device(adapter, &info);
i2c_put_adapter(adapter);

struct i2c_client *client;
struct i2c_adapter *adapter = i2c_get_adapter(1);
struct i2c_board_info info;
strlcpy(info.type, "i2c-dac", I2C_NAME_SIZE);
strlcpy(info.name, "My DAC", I2C_NAME_SIZE);
client = i2c_new_device(adapter, &info);
i2c_put_adapter(adapter);

DIIS

DevHeads IoT Integration Server•2y ago•

3 replies

Boss lady

How can I resolve the "Failed to acquire I2C client" error in my kernel space I2C DAC implementation

@Middleware & OS
How can I use the I2C bus(DAC) in kernel space, I have verified that the I2C adapter and address in kernel space, I expected to get a

Successfully acquired i2c client

Successfully acquired i2c client

message in my log but still getting the error

Failed to acquire I2C client

Failed to acquire I2C client

Here's my code

struct i2c_client *client;
struct i2c_adapter *adapter = i2c_get_adapter(1);
struct i2c_board_info info;
strlcpy(info.type, "i2c-dac", I2C_NAME_SIZE);
strlcpy(info.name, "My DAC", I2C_NAME_SIZE);
client = i2c_new_device(adapter, &info);
i2c_put_adapter(adapter);

struct i2c_client *client;
struct i2c_adapter *adapter = i2c_get_adapter(1);
struct i2c_board_info info;
strlcpy(info.type, "i2c-dac", I2C_NAME_SIZE);
strlcpy(info.name, "My DAC", I2C_NAME_SIZE);
client = i2c_new_device(adapter, &info);
i2c_put_adapter(adapter);

How can I resolve the "Failed to acquire I2C client" error in my kernel space I2C DAC implementation

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