On Mon, Apr 19, 2010 at 11:08:10AM +0100, Bastien Nocera wrote: > On Mon, 2010-04-19 at 00:28 -0700, Dmitry Torokhov wrote: > > On Mon, Apr 19, 2010 at 01:31:49AM +0100, Bastien Nocera wrote: > > > On Sun, 2010-04-18 at 13:19 -0700, Dmitry Torokhov wrote: > > > <snip> > > > > > > Hmm, I am curious why suspend and resume is not necessary for this > > > > > > device... Are you relying on the USB core to tear down and re-create the > > > > > > device? Then you may lose user-applied settings (like changed keymap). > > > > > > > > > > How could I test that? > > > > > > > > Change the keymap (with keyfuzz or something similar), suspend. resume and see > > > > if the mapping persisted. > > > > > > Tried using udev's keymap tool on it, but the default get function > > > doesn't give me any output. > > > > > > Am I supposed to implement get/setkeycode myself for this to work, or > > > should the default input functions work? If the latter, is there > > > anything missing in the driver for me to call to enable that? > > > > > > Trying to set a keycode says that the "EVIOCSKEYCODE" ioctl returns > > > EINVAL. > > > > > > > As I said in an earlier e-mail: > > > > > ... also set up input_dev->keycode, keycodemax and keycodesize so that > > > keymap can be adjusted from userspace on per-device basis. > > I missed that bit, sorry. > > I tested udev's keymap, and the keymap isn't being saved across > suspend/resume cycles. I re-added the _suspend() and _resume() calls > (and their definitions in the usb_driver struct), but the keymap still > disappears. Do you see another instance of the device appearing in dmesg? > > Is there anything else I would need to do in this case to keep the > device (and its keymap) around during suspend? > > I'm guessing that this problem wouldn't matter too much because udev > would re-apply any keymaps it had for the device when it reappears, and > in the lirc case, the keymap is in user-space. That assumes that user does use udev. Extremely likely, but still not certain. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
