On Tue, Mar 27, 2018 at 4:21 AM, Guo Ren <ren_guo@xxxxxxxxx> wrote: > On Mon, Mar 26, 2018 at 03:16:31PM +0200, Arnd Bergmann wrote: >> > +CONFIG_CFG80211=y >> > +CONFIG_CFG80211_DEBUGFS=y >> > +CONFIG_CFG80211_WEXT=y >> >> I would guess you want IPV6 but not WEXT here. > Gx6605s devlepment board support usb-wifi. > Perhaps WEXT is needed by iwconfig or iwlist? So I just enable it. > However, I'll consider to remove it. I think it's only for backwards compatibility with old versions of those tools. There are some older drivers that use WEXT as the native interface, but CFG80211 based drivers have a netlink interface. >> > +CONFIG_FB=y >> > +CONFIG_FB_TILEBLITTING=y >> > +CONFIG_FB_SIMPLE=y >> > +CONFIG_BACKLIGHT_LCD_SUPPORT=y >> > +# CONFIG_LCD_CLASS_DEVICE is not set >> > +# CONFIG_BACKLIGHT_CLASS_DEVICE is not set >> > +# CONFIG_VGA_CONSOLE is not set >> > +CONFIG_FRAMEBUFFER_CONSOLE=y >> > +CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y >> > +CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y >> > +CONFIG_LOGO=y >> > +# CONFIG_LOGO_LINUX_MONO is not set >> > +# CONFIG_LOGO_LINUX_VGA16 is not set >> >> For new platforms, using the DRM subsystem is the recommend >> way to do graphics, it mostly replaces the framebuffer subsystem >> here. > These used by: > https://github.com/c-sky/addons-linux/tree/master/addons/drivers/video/fbdev/nationalchip > > I'll consider the DRM subsystem. It used to be rather hard to write a new DRM driver, but that has improved a lot recently. You might be able to fit your driver into drivers/gpu/drm/tinydrm/, or maybe do something a bit more complex like drivers/gpu/drm/pl111/ or drivers/gpu/drm/stm/. Arnd
