Hi! > This patch series implements the LED controllers found in some RTD1295 based > TV set-top boxes. > > Ever since I've had mainline Linux kernels booting on my Zidoo X9S TV box, > it's been bugging me that it kept displaying "boot" on its front display. > A hot lead was a TM1628 chip on the front display's daughterboard, which > English and Chinese datasheets were available for. The biggest > hurdle Fun :-). > It goes on to add a "text" attribute to the driver that enables DT-configured > seven-segment displays; I was expecting to find precedence in auxdisplay > subsystem but came up empty. So my driver currently integrates its own > generic (but incomplete) character-to-8-segments mapping, as well as in a > second step a combined-characters-to-8-segments mapping, which then gets > mapped to the chipset's available output lines. Doing this as sysfs > device I did not investigate this in great detail; but if it is displaying characters, auxdisplay is probably right subsystem to handle that. I guess LEDs can still take the low-level parts... Oh, and common dimming for many LEDs is seen on other hardware, too (Turris routers). Not sure how to handle that, either :-(. Best regards, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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