[lkml]   [2006]   [Dec]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: Network drivers that don't suspend on interface down
    On Wed, Dec 20, 2006 at 10:06:51PM -0500, Dan Williams wrote:

    > a) tied to the wireless hardware, switch kills hardware directly
    > b) tied to wireless hardware, but driver handles the kill request
    > c) just another key, a separate key driver handles the event and asks
    > the wireless driver to kill the card
    > It's also complicated because some switches are supposed to rfkill both
    > an 802.11 module _and_ a bluetooth module at the same time, or I guess
    > some laptops may even have one rfkill switch for each wireless device.
    > Furthermore, some people want to 'softkill' the hardware via software
    > without pushing the key, which is a subset of (b) or (c) above.

    If we define interface down as meaning that the device is powered down
    and the radio switched off, then (b) and (c) would presumably just need
    to ensure that the interface is downed. (a) is a slightly more special
    case - if the switch disables the radio, I guess we then want the driver
    to down the interface as well.

    In the (a) case, drivers should presumably refuse to bring the interface
    up if the radio is disabled?
    Matthew Garrett |
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2006-12-21 04:17    [W:0.022 / U:9.212 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site