From: Pavel Rojtberg <[email protected]> We initializing the driver/device, we really don't know how many controllers are connected. So send a "query presence" command to the base-station. (Command discovered by Zachary Lund)
Note, this means we now do not "preallocate" all 4 devices when a single wireless base station is seen, but require the device to be properly connected to the base station before that can happen. The allocation of the device happens in the next patch, not here, so in a way, this patch breaks all wireless devices... based on patch by "Pierre-Loup A. Griffais" <[email protected]> presence packet taken from: https://github.com/computerquip/xpad5 Signed-off-by: Pavel Rojtberg <[email protected]> --- drivers/input/joystick/xpad.c | 33 +++++++++++++++++++++++++++++---- 1 file changed, 29 insertions(+), 4 deletions(-) diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c index ed17e5d..3349861 100644 --- a/drivers/input/joystick/xpad.c +++ b/drivers/input/joystick/xpad.c @@ -1223,11 +1223,36 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id usb_kill_urb(xpad->irq_in); goto fail4; } + + /* + * send presence packet + * This will force the controller to resend connection packets. + * This is useful in the case we activate the module after the + * adapter has been plugged in, as it won't automatically + * send us info about the controllers. + */ + mutex_lock(&xpad->odata_mutex); + xpad->odata[0] = 0x08; + xpad->odata[1] = 0x00; + xpad->odata[2] = 0x0F; + xpad->odata[3] = 0xC0; + xpad->odata[4] = 0x00; + xpad->odata[5] = 0x00; + xpad->odata[6] = 0x00; + xpad->odata[7] = 0x00; + xpad->odata[8] = 0x00; + xpad->odata[9] = 0x00; + xpad->odata[10] = 0x00; + xpad->odata[11] = 0x00; + xpad->irq_out->transfer_buffer_length = 12; + usb_submit_urb(xpad->irq_out, GFP_KERNEL); + mutex_unlock(&xpad->odata_mutex); + } else { + xpad->pad_present = 1; + error = xpad_init_input(xpad); + if (error) + goto fail4; } - xpad->pad_present = 1; - error = xpad_init_input(xpad); - if (error) - goto fail4; return 0; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
