That is because you forgot to enable:
Device Drivers --->
[*] FIFO and named pipe drivers --->
Remember: "git grep" is your friend!
BR,
Alan
On Wed, Dec 20, 2023 at 9:53 AM Gustavo Soares <
gustavo.felipesoa...@hotmail.com> wrote:
> Hi Alan!
>
> Yes, this message pops up when trying to compile:
>
> the problem seems to be in the apps/system/popen.
> Should any other configuration be applied besides enabling the
> popen()/pclose() functions?
>
> ------------------------------
> *De:* Alan C. Assis <acas...@gmail.com>
> *Enviado:* quarta-feira, 20 de dezembro de 2023 08:15
> *Para:* dev@nuttx.apache.org <dev@nuttx.apache.org>
> *Assunto:* Re: Read response from console
>
> Hi Gustavo,
>
> Do you mean apps/examples/popen is not working?
>
> I remember using popen() in the past to get the result of other program
> output.
>
> Best Regards,
>
> Alan
>
> On Mon, Dec 18, 2023 at 3:39 PM Gustavo Soares <
> gustavo.felipesoa...@hotmail.com> wrote:
>
> Hello everyone!
>
> I have some i2c devices connected to my ESP32 and I can get their values
> by using the i2c get command from NuttX. Now I need my app to extract the
> value from the response, so I enabled the popen() and pclose() functions
> but it still not possible to use them, is there any other config that must
> be enabled? Even the popen example can't find the method reference.
>
>
> BR,
> Gustavo.
>
>
