topic Re: Is there any device Driver for PCAL6408A(io expander)? in Processor Expert Software

Is there any device Driver for PCAL6408A(io expander)?

muhammed_ali — Wed, 18 Mar 2020 08:19:09 GMT

I am going to implement PCAL6408A in embedded linux system, so i am searching for the driver for the same. is there any specific driver for the PCAL6408A or any compatible one ?

Re: Is there any device Driver for PCAL6408A(io expander)?

muhammed_ali — Fri, 20 Mar 2020 05:05:17 GMT

Hi Team,

Any update on this

Re: Is there any device Driver for PCAL6408A(io expander)?

guoweisun — Sat, 21 Mar 2020 00:23:34 GMT

Unfortunately we don't have such driver.

Re: Is there any device Driver for PCAL6408A(io expander)?

muhammed_ali — Mon, 23 Mar 2020 05:23:10 GMT

Hi G.w. Sun,

Is there any related Driver for the same,

Re: Is there any device Driver for PCAL6408A(io expander)?

guoweisun — Mon, 23 Mar 2020 05:42:20 GMT

Unfortunately,no more for recommend.

Re: Is there any device Driver for PCAL6408A(io expander)?

filip_kubicz — Wed, 09 Nov 2022 18:05:12 GMT

Hi @muhammed_ali , the GPIO driver gpio-953x has recently introduced support for PCAL6408 expander:

https://github.com/torvalds/linux/blob/master/drivers/gpio/gpio-pca953x.c#L93

Commit with the change:

https://github.com/torvalds/linux/commit/6d50b79051edc298aba7f60184d9b2fb673f0628

Re: Is there any device Driver for PCAL6408A(io expander)?

filip_kubicz — Wed, 09 Nov 2022 18:07:05 GMT

Here the device tree bindings for this driver: https://www.kernel.org/doc/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt