[i.MX6Q]I register a driver's interrupt, but the error

[solanum]

I would like to interrupt GPIO_3_20, but registration appears to be a failure, I need help ...... Thanks!

Driver code · GitHub

Target information · GitHub

[igorpadykov · Accepted solution]

HI solanum

please check that that gpio pad was not used for other purposes,

and configure iomux settings with IOMUXC_SW_MUX_CTL_ registers.

Read Linux Manual on link below also there are links to simple gpio interrupt examples

GPIO interrupt on i.MX6

Best regards

igor

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[solanum]

Igor :

Thank you very much! I did it!
Because you gave me the link.
But I do not know what you say Lnux manual, I want to know.

Solanum