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    SubjectRe: Keyboard is frozen on boot of 2.3.41

    On 30-Jan-00 Linus Torvalds wrote:
    > - disable the keyboard before changing the controller mode in open_aux(),
    > and re-order the operations, ie make the init sequence look like this:
    > kbd_write_command_w(KBD_CCMD_MOUSE_ENABLE); /* Enable mouse
    controller */
    > send_data(KBD_CMD_DISABLE); /* Disable keyboard
    during mode set */
    > kbd_write_cmd(AUX_INTS_ON); /* Enable controller
    ints for both keyboard
    > and mouse */
    > send_data(KBD_CMD_ENABLE); /* Enable keyboard
    again */
    > aux_write_ack(AUX_ENABLE_DEV); /* Enable the mouse
    itself */
    > which actually makes a lot more sense than the current one (makes the
    > mouse and keyboard controller and device "enabledness" be more regular:
    > both controllers are enabled during the mode set, but both devices are
    > disabled until after the mode-set is complete.

    OK, this *immediately* locked the keyboard on mouse open, without having to
    touch the mouse like before. When I killed gpm and closed the mouse device,
    all the types characters poured out.

    Sometimes it printed the "keyboard: Timeout - AT keyboard not present?"
    message, but other times it didn't.

    /proc interrupts shows nothing was delivered to IRQ 12:

    12: 0 XT-PIC usb-uhci, Ricoh Co Ltd RL5c475


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