Hello, immediately to the point (and sorry for the lenght of this mail). [Stelian: could you help putting some light on historical sonypi material?] What's already there: - enable the device using acpi tables information and methods - input layer event reporting - acpi event reporting my current code is here: http://www.linux.it/~malattia/sony-pic/ What's still missing: 1- bluetooth power control 2- fan speed control 3- brightness control 4- battery status/capabilities reading 5- ac status control 6- temperature reading 7- motion eye camera support 8- /dev/sonypi and its IOCTLs for the above points (1-7) Future: I've not dropped the idea of merging sony-laptop and sonypi, I'm currently implementing it as a separate driver for easier testing only. So the great sony-laptop would deal with both the SNY5001 (SNC) and SNY6001 (SPIC) acpi_devices, having a parameter to disable the latter and anyway if the older/obsoleted sonypi grabs the SNY6001 device first sony-laptop couldn't get it anyway. 1 and 2: it makes sense to implement them as platform_device attributes[1] together with already existing sony-laptop's attributes once I merge the drivers. 3: is in sony-laptop already (does it work also with very old laptops? as said I have a gr7k that dates back in 2000/2001, is a Type2 and works. I can't tell for Type1s which are even older). Stelian, out of curiosity is the C1 the only Type1 or are there more? 4, 5 and 6: are available through ACPI, those EC hacks were mainly for ACPI-enabled-but-using-APM older laptops. 7: could be added as is and actually modifying it would break the meye driver (is it really still maintained?) but sonypi and sony-laptop can't export the same symbol. 8: this would become the compat layer for /dev/sonypi using userspace, the only problem being the AFAICT there's no easy way to get battery/ac/tz information from within the kernel and this is what puzzles me most now backward compatibility-wise. I'd like to make the compat layer a Kconfig option so probably the best approach is to implement the EC reading in case COMPAT=y. Comments? Anything I missed? Thanks [1]: I like the ibm-acpi idea of exposing the fan through hwmon/sysfs but currently the sony fan control is completely undocumented and I've never seen it doing anything interesting other than reading the current speed (I suppose in RPM). -- mattia :wq! - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
