MAX_I2C_DATA_LEN
static const u8 cmd[MAX_I2C_DATA_LEN] = { 0x03, 0x03, 0xa, 0x01, 0x41 };
ret = i2c_master_send(client, cmd, MAX_I2C_DATA_LEN);
static const u8 suspend_cmd[MAX_I2C_DATA_LEN] = {
ret = i2c_master_send(client, suspend_cmd, MAX_I2C_DATA_LEN);
u8 buf[MAX_I2C_DATA_LEN];
ret = i2c_master_recv(client, buf, MAX_I2C_DATA_LEN);