On Fri, Nov 27, 2009 at 9:26 PM, <andrej.gelenberg@xxxxxxx> wrote: > Hi, > > > from Documentation/rfkill.txt: > > 1. Introduction > > The rfkill subsystem provides a generic interface to disabling any radio > transmitter in the system. When a transmitter is blocked, it shall not > radiate any power. > > The subsystem also provides the ability to react on button presses and > disable all transmitters of a certain type (or all). This is intended for > situations where transmitters need to be turned off, for example on > aircraft. > > The rfkill subsystem has a concept of "hard" and "soft" block, which > differ little in their meaning (block == transmitters off) but rather in > whether they can be changed or not: > - hard block: read-only radio block that cannot be overriden by software > - soft block: writable radio block (need not be readable) that is set by > the system software. > > The eepc-latop-rfkill should be hard block. The block can be overriden by software (that's what we do), so it's a soft block. > If the LED is not on, > my wlan-card won't transmit. The eeepc-laptop is only driver > which use hotplug-subsystem to hide the hardware. > It work only until next pci-rescan. > Firmware must not tell you, where the wlan-card is, > it should only provide hard-rfkill (on 1005ha it does). > Or the wlan-driver should provide proper rfkill > (at least soft block). > The hardcoded bus and slot it not proper solution. > > For example in miniPCI-pinout pin 13 is "RF Silent input", > also the firmware shuld only set the pin. > http://www.interfacebus.com/MiniPCI_Pinout_124Pin.html > > Matthew Garrett writes: > >> That's because the eee firmware gives us no control over which device is >> unplugged. I think you're missing the point of how the eee rfkill code works >> - we don't unplug any devices, the firmware does that. We then need to tell >> Linux that the PCI device has vanished in order to prevent drivers from >> attempting to use a piece of hardware that's no longer accessible. > > eeepc firmware does not unplug device, it set only a rfkill-pin, > so the wlan-card know, that it should not transmit any more. Do you mean this is the case on all Eeepc or only on 1005h ? Thanks; -- Corentin Chary http://xf.iksaif.net -- 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
