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I2C GPIO-PCA953X interrupt support ? #631

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ghost opened this issue Jul 7, 2014 · 1 comment
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I2C GPIO-PCA953X interrupt support ? #631

ghost opened this issue Jul 7, 2014 · 1 comment

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@ghost
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ghost commented Jul 7, 2014

Hello,
I am using the PCA953X GPIO driver to interface a PCA9555-equivalent IC via I2C-1 on a Pi Rev 2. The driver is able to provide a polling mechanism to read the Input pin values. I have an interrupt line wired up too. From the kernel driver (3.10 or 3.12), the interrupt line gets registered, but I dont see any interrupts. I was wondering if anybody has got the interrupt version of the driver working on a Pi. From what I can make out, this is a chained gpiochip and it seems to be failing in the irq_create_mapping scenario. What specific changes would be needed ?
Hopefully this is the right forum to post this on.
TIA for the help,
Ajit
@Ruffio
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Ruffio commented Aug 10, 2016

@aja91 has this issue been resolved? If yes, then please close this issue.

@ghost ghost closed this as completed Aug 14, 2016
@tootai tootai mentioned this issue Oct 29, 2016
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@Ruffio