2012/1/5 Simon Søndergaard <john7doe@xxxxxxxxx>: > 2012/1/5 Devin Heitmueller <dheitmueller@xxxxxxxxxxxxxx>: >> 2012/1/5 Simon Søndergaard <john7doe@xxxxxxxxx>: >>> Hi, >>> >>> I recently purchased a PCTV 290e USB Stick (em28174) it comes with a >>> remote almost as small as the stick itself... I've been able to get >>> both stick and remote to work. I also own an MCE media center remote >>> from HP (this make >>> http://www.ebay.com/itm/Original-Win7-PC-MCE-Media-Center-HP-Remote-Controller-/170594956920) >>> that sends RC-6 codes. While it do have a windows logo I still think >>> it is vastly superior to the one that shipped with the stick :-) >>> >>> If I understand it correctly em28174 is a derivative of em2874? >>> >>> In em28xx-input.c it is stated that: "em2874 supports more protocols. >>> For now, let's just announce the two protocols that were already >>> tested" >>> >>> I've been searching high and low for a datasheet for em28(1)74, but >>> have been unable to find it online. Do anyone know if one of the >>> protocols supported is RC-6? and if so how do I get a copy of the >>> datasheet? >> >> The 2874 supports NEC, RC-5, and RC-6/6A. I did the original support >> (based on the docs provided under NDA) but ironically enough I didn't >> have an RC6 remote kicking around so I didn't do the support for it. >> >> IR receivers for MCE devices are dirt cheap (< $20), and if you're >> doing a media center then it's likely the PCTV 290e probably isn't in >> line-of-site for a remote anyway. > > The 290e will be in line of sight. > > Perhaps the info is already there, not sure why I overlooked it in the > first place: > > EM2874_IR_RC6_MODE_0 0x08 > EM2874_IR_RC6_MODE_6A 0x0b Ah, so I guess I did put at least some of the info into the driver. Also, for RC6 make sure bits 0-1 are 00 and for RC6A they need to be set based on the number of bytes expected to be received (2 bytes=00, 3bytes=01, 4bytes=10). The received data gets stored in 0x52-0x55 (I don't remember if the driver actually looks are 0x54/55 currently since they aren't used for NEC or RC5).. > RC5 and RC6 use same carrier frequency? so do I need another value for > EM28XX_R0F_XCLK? You shouldn't need to touch the XCLK register. Good luck! Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- 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
