On Thu, Jul 05, 2012 at 03:01:57PM +0800, Zhang Rui wrote: > +Note that although these are ACPI devices, we prefer to use PnP drivers > for them, > +this is because: > +1. all the non-ACPI-predefined Devices are exported as PnP devices as > well > +2. PnP bus is a well designed bus. Probing via PnP layer saves a lot of > work > + for the device driver, e.g. getting & parsing ACPI resources. (Nice BKM, thanks for sharing) I have few questions about using PnP drivers instead of pure ACPI drivers. ACPI 5.0 defined some new resources, for example "Fixed DMA descriptor" that has information about the request line + channel for the device to use. Hovewer, PnP drivers pass resources as 'struct resource', which basically only has start and end - how do you represent all this new stuff using 'struct resource'? Or should we use acpi_walk_resources() where 'struct resource' is not suitable? -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
