On Sunday 15 March 2009 10:50:37 Jean-Francois Moine wrote: > On Sat, 14 Mar 2009 13:16:11 -0700 (PDT) > > Trent Piepho <xyzzy@xxxxxxxxxxxxx> wrote: > > There is already a sysfs led interface, you could just have the driver > > export the leds to the led subsystem and use that. > > Yes, but: > - this asks to have a kernel generated with CONFIG_NEW_LEDS, > - the user must use some new program to access /sys/class/leds/<device>, > - he must know how the LEDs of his webcam are named in the /sys tree. > > While, when the LEDs are handled by a simple control, the user may > quickly change all webcam parameters from a single program as v4l2-ctl. This would work if devices only exported a few simple LED controls. If we throw multi-color blinking LEDs in the mix we will need a complete LED API anyway. Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
