Re: suitable IOCTL error code when device is in state IOCTL cannot performed

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Em 12-08-2012 13:38, Antti Palosaari escreveu:
> Subject says it all. Which one error value is most suitable / generic ?
> 
> Here are few ones I found which could be possible:
> 
> #define EPERM        1  /* Operation not permitted */
> #define EAGAIN      11  /* Try again */
> #define EACCES      13  /* Permission denied */
> #define EBUSY       16  /* Device or resource busy */
> #define ENODATA     61  /* No data available */
> #define ECANCELED   125 /* Operation Canceled */

IMHO, EAGAIN, EBUSY or ENODATA are the most pertinent ones.

Regards,
Mauro
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