2012/1/5 Devin Heitmueller <dheitmueller@xxxxxxxxxxxxxx>: > 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).. > The driver already reads up to 0x55. Do you mean bits 0-1 of EM2874_R50_IR_CONFIG? The Driver code and the defines above is in LSB 0 syntax, so bit 0-1 would overlap with the 0x0b value... Regardless I tried using 0x8b, 0x4b, 0x0b, 0x0a and 0x09 as the value for EM2874_R50_IR_CONFIG, but I never observed any changes to EM2874_R51_IR :-( I'm assuming that read count should still be read from EM2874_R51_IR regardless of the mode Br, /Simon -- 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
