Opened 2 years ago
Last modified 2 years ago
#18163 new enhancement
i2c / smbus driver for piix4 chipsets (intel and AMD)
| Reported by: | kallisti5 | Owned by: | nobody |
|---|---|---|---|
| Priority: | low | Milestone: | Unscheduled |
| Component: | Drivers/I2C | Version: | R1/Development |
| Keywords: | Cc: | ||
| Blocked By: | Blocking: | ||
| Platform: | All |
Description
Haiku has growing i2c bus support thanks to the work of X512. We need an i2c / smbus driver for piix4 compatible chipsets (Intel + AMD)
https://github.com/torvalds/linux/blob/master/drivers/i2c/busses/i2c-piix4.c#L900
The piix4 bus is present on older Intel systems, and all modern AMD systems.
Change History (2)
comment:1 by , 2 years ago
| Component: | Drivers → Drivers/I2C |
|---|
comment:2 by , 2 years ago
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I2C interrupt line handling is also needed for I2C HID devices that is currently not implemented for real hardware. I2C HID devices can work without interrupts by pooling, but it degrade response and increase energy use.