Re: [PATCH] iio: humidity: ens210: Fix missing I2C functionality checks

[Andy Shevchenko]

On Tue, May 05, 2026 at 10:02:47AM +0100, Salah Triki wrote:
> The ENS210 driver uses both `i2c_smbus_read_byte_data()` and
> `i2c_smbus_read_word_data()` during the read and probe phases.
> However, `i2c_check_functionality()` was only checking for block reads
> and simple byte writes, which could lead to hardware interface
> incompatibilities or errors on certain adapters that do not natively
> support SMBus word or byte data transactions.
> 
> Add `I2C_FUNC_SMBUS_READ_BYTE_DATA` and `I2C_FUNC_SMBUS_READ_WORD_DATA`
> to the functionality check mask to ensure the adapter supports the
> required operations before communication begins.

Can we rather modify the driver to use SW emulation for these cases?

-- 
With Best Regards,
Andy Shevchenko