On Thu, Nov 06, 2014 at 08:56:47AM -0500, Andy Walls wrote: > On November 6, 2014 8:54:28 AM EST, Andy Walls <awalls.cx18@xxxxxxxxx> wrote: > >Sean, > > > >Ir-kbd-i2c was never intended for Tx. > > > >You can transmit *short* arbitrary pulse-space streams with the zilog > >chip, by feeding it a parameter block that has the pulse timing > >information and then subsequently has been obfuscated. The firmware > >file that LIRC uses in userspace is full of predefined versions of > >these things for RC5 and NEC IIRC. This LIRC firmware file also holds > >the (de)obfuscation key. > > > >I've got a bunch of old notes on this stuff from essentially reverse > >engineering the firmware in the Z8. IANAL, but to me, its use in > >developing in-kernel stuff could be dubious. > > > >Regards, > >Andy Very interesting. I had considered reverse engineering the z8 firmware but I never found a way to access it. I guess we have three options: 1. I could use Andy's notes to implement Tx. I have not seen the original firmware code so I'm not contaminated by reverse engineering it. IANAL but I thought this is an acceptable way of writing a driver. 2. Hauppauge could prove us with documentation to write a driver with. 3. Leave it as-is, lirc_zilog will eventually be deleted from staging as it can't be ported to rc-core. Sean -- 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
