On Apr 10, 2011, at 7:08 PM, Andy Walls wrote: > On Sat, 2011-04-09 at 21:39 -0400, Jarod Wilson wrote: > >>> Jarod, >>> >>> The HVR-1850 uses a raw IR receiver in the CX23888 and older >> HVR-1250s use the raw IR receiver in the CX23885. They both work for >> Rx (I need to tweak the Cx23885 rx watermark though), but I never >> found time to finish Tx (lack of kernel interface when I had time). >>> >>> If you obtain one of these I can answer any driver questions. >> >> Quite some time back, I bought an HVR-1800 and an HVR-1250. I know one of >> them came with an mceusb transceiver and remote, as was pretty sure it was >> the 1800. For some reason, I didn't recall the 1250 coming with anything at >> all, but looking at dmesg output for it: >> >> cx23885 driver version 0.0.2 loaded >> cx23885 0000:03:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 >> CORE cx23885[0]: subsystem: 0070:7911, board: Hauppauge WinTV-HVR1250 [card=3,autodetected] >> tveeprom 0-0050: Hauppauge model 79001, rev E3D9, serial# 4904656 >> tveeprom 0-0050: MAC address is 00:0d:fe:4a:d6:d0 >> tveeprom 0-0050: tuner model is Microtune MT2131 (idx 139, type 4) >> tveeprom 0-0050: TV standards NTSC(M) ATSC/DVB Digital (eeprom 0x88) >> tveeprom 0-0050: audio processor is CX23885 (idx 39) >> tveeprom 0-0050: decoder processor is CX23885 (idx 33) >> tveeprom 0-0050: has no radio, has IR receiver, has no IR transmitter >> >> So it seems I do have hardware. However, its one of the two tuner cards in >> my "production" mythtv backend right now, making it a bit hard to do any >> experimenting with. If I can get it out of there, it looks like I just add >> an enable_885_ir=1, and I should be able to poke at it... > > Yeah. Igor's TeVii S470 CX23885 based card had interrupt storms when > enabled, so IR for '885 chips is disabled by default. To investigate, I > tried to by an HVR-1250 with a CX23885, but instead got an HVR-1275 with > a CX23888. dandel, on IRC, did a pretty decent job in testing HVR-1250 > operation and finding it works, despite climbing kernel > build/development learning curve at the time. ... Finally got some time to play with my 1250, dug out its rx cable, turns out to be the same one I special-ordered to work on the 1150 Devin sent me. Oops. Anyway. First impressions, not so good. Got a panic on boot, somewhere in cx23885_video_irq, iirc, when booting with enable_885_ir=1 set. However, dmesg was somewhere in the middle of cx18 init of the HVR-1600 in the box. Dunno if there's any way that's actually directly related, but I yanked the 1600. After doing that, the box managed to boot fine, but then while testing w/ir-keytable and an RC-6 remote, I got what I think was the same panic -- definitely the cx23885_video_irq bit in the trace, something about sleeping while atomic, IP at mwait_idle. (On the plus side, IR did seem to be working before that). Note also that this is a 2.6.32-based kernel with a 2.6.38-era backport of the driver code, because that's what was on this box. Was about to put it back into "production" use, but hey, its summer, there's nothing really for it to record for another few months, so I'll keep it out and throw it into another box with a newer kernel and serial console, etc., so I can further debug... -- Jarod Wilson jarod@xxxxxxxxxxxx -- 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
