Re: [PATCH] iio: chemical: scd30: make command lookup table const

[Jonathan Cameron]

On Fri,  8 May 2026 17:39:17 +0400
Giorgi Tchankvetadze <giorgitchankvetadze1997@xxxxxxxxx> wrote:

> scd30_i2c_cmd_lookup_tbl contains fixed opcodes and is
> only read by scd30_i2c_command(). Make it const to document that it's immutable
> and allow it to be placed in read-only memory.
> 
> Signed-off-by: Giorgi Tchankvetadze <giorgitchankvetadze1997@xxxxxxxxx>
Applied to the testing branch of iio.git.  Thanks,

Jonathan

> ---
>  drivers/iio/chemical/scd30_i2c.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/iio/chemical/scd30_i2c.c b/drivers/iio/chemical/scd30_i2c.c
> index 436df9c61a71..bf465cc71be7 100644
> --- a/drivers/iio/chemical/scd30_i2c.c
> +++ b/drivers/iio/chemical/scd30_i2c.c
> @@ -20,7 +20,7 @@
>  #define SCD30_I2C_MAX_BUF_SIZE 18
>  #define SCD30_I2C_CRC8_POLYNOMIAL 0x31
>  
> -static u16 scd30_i2c_cmd_lookup_tbl[] = {
> +static const u16 scd30_i2c_cmd_lookup_tbl[] = {
>  	[CMD_START_MEAS] = 0x0010,
>  	[CMD_STOP_MEAS] = 0x0104,
>  	[CMD_MEAS_INTERVAL] = 0x4600,