Dnia 4 Października 2012, 8:25 am, Cz, Dmitry Torokhov napisał(a): > Hi Przemo, Hi Dmitry, > > On Sun, Sep 09, 2012 at 03:37:18PM -0400, Przemo Firszt wrote: >> This patch adds a new way of handling Wacom Intuos4 family OLEDs. >> Previously the images had to be 'scrambled' by userland application. Now >> the 'scrambling' is done in the kernel module, so user space can send >> simple 64x32 pixels 4-bit grayscale (2 pixels per byte) 0,0 in top left >> corner >> images straight to a wacom OLED sysfs entry. An example: >> >> dd bs=1024 if=image_file \ >> of=/sys/bus/usb/drivers/wacom/[DevNo]/wacom_led/button[No]_formattedimg >> \ >> count=1 >> >> This patch greatly simplifies user space preparation of the image. >> The raw image sysfs enties are still present to avoid breaking API. > > I do not not believe that we should add code to the kernel for tasks that > can be just as easily performed in userspace. > > Thanks! > > -- > Dmitry > OK, thanks for the explanation! -- Regards, Przemo Firszt -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
