Reading TPS65217 INT register with interrupt

[Ahmad Fatehi]

Hi, I want to use 5V adaptor and battery for powering my beaglebone black, I want to detect when 5V adaptor is missed and the board is supplying from battery, for this I should read the INT and STATUS register of TPS65217 if an interrupt is issued on PMIC_INT pin. So probably I must access the linux kernel for TPS65217 driver and modify it?! From where I can access to this kernel? or how can I detect interrupt and read STATUS register?

[John Syne]

This is where you need to learn some GIT skills. Clone the kernel source and then in the kernel directory, issue this command:

git grep tps65217

This will tell you all the files that contain references to TPS65217. 

Regards,

John

On Sep 23, 2017, at 1:28 AM, Ahmad Fatehi <fatehi...@gmail.com> wrote:

Hi, I want to use 5V adaptor and battery for powering my beaglebone black, I want to detect when 5V adaptor is missed and the board is supplying from battery, for this I should read the INT and STATUS register of TPS65217 if an interrupt is issued on PMIC_INT pin. So probably I must access the linux kernel for TPS65217 driver and modify it?! From where I can access to this kernel? or how can I detect interrupt and read STATUS register?

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