Hello, I have a mceusb compatible transceiver that only seems to work with certain computers. I'm testing this on centos7 (3.10.0) and fedora23 (4.4.7). The only difference I can see is that the working computer shows "using uhci_hcd" and the non working shows "using xhci_hcd". Here's the dmesg output of the non-working version: --------------------- [ 217.951079] usb 1-5: new full-speed USB device number 10 using xhci_hcd [ 218.104087] usb 1-5: device descriptor read/64, error -71 [ 218.371010] usb 1-5: config 1 interface 0 altsetting 0 endpoint 0x1 has an invalid bInterval 0, changing to 32 [ 218.371019] usb 1-5: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 32 [ 218.373591] usb 1-5: New USB device found, idVendor=1784, idProduct=0006 [ 218.373600] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 218.373605] usb 1-5: Product: eHome Infrared Transceiver [ 218.373608] usb 1-5: Manufacturer: TopSeed Technology Corp. [ 218.373611] usb 1-5: SerialNumber: TS004RrP [ 218.376082] Registered IR keymap rc-rc6-mce [ 218.376277] input: Media Center Ed. eHome Infrared Remote Transceiver (1784:0006) as /devices/pci0000:00/0000:00:14.0/usb1/1-5/1-5:1.0/rc/rc0/input13 [ 218.376387] rc0: Media Center Ed. eHome Infrared Remote Transceiver (1784:0006) as /devices/pci0000:00/0000:00:14.0/usb1/1-5/1-5:1.0/rc/rc0 [ 218.377439] input: MCE IR Keyboard/Mouse (mceusb) as /devices/virtual/input/input14 [ 218.377733] rc rc0: lirc_dev: driver ir-lirc-codec (mceusb) registered at minor = 0 [ 218.508970] mceusb 1-5:1.0: Registered TopSeed Technology Corp. eHome Infrared Transceiver with mce emulator interface version 1 [ 218.508976] mceusb 1-5:1.0: 2 tx ports (0x0 cabled) and 2 rx sensors (0x0 active) --------------------- and the working version: --------------------- [ 407.226018] usb 2-2: new full-speed USB device number 3 using uhci_hcd [ 412.329019] usb 2-2: device descriptor read/64, error -110 [ 412.578054] usb 2-2: config 1 interface 0 altsetting 0 endpoint 0x1 has an invalid bInterval 0, changing to 32 [ 412.578540] usb 2-2: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 32 [ 412.613053] usb 2-2: New USB device found, idVendor=1784, idProduct=0006 [ 412.613542] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 412.614172] usb 2-2: Product: eHome Infrared Transceiver [ 412.615060] usb 2-2: Manufacturer: TopSeed Technology Corp. [ 412.615930] usb 2-2: SerialNumber: TS004RrP [ 412.624068] Registered IR keymap rc-rc6-mce [ 412.624672] input: Media Center Ed. eHome Infrared Remote Transceiver (1784:0006) as /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/rc/rc0/input22 [ 412.625404] rc0: Media Center Ed. eHome Infrared Remote Transceiver (1784:0006) as /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/rc/rc0 [ 412.626251] input: MCE IR Keyboard/Mouse (mceusb) as /devices/virtual/input/input23 [ 412.627627] rc rc0: lirc_dev: driver ir-lirc-codec (mceusb) registered at minor = 0 [ 412.782038] mceusb 2-2:1.0: Registered TopSeed Technology Corp. eHome Infrared Transceiver with mce emulator interface version 1 [ 412.782594] mceusb 2-2:1.0: 2 tx ports (0x0 cabled) and 2 rx sensors (0x1 active) --------------------- It seems like there's been some similar history with this driver: https://patchwork.linuxtv.org/patch/21648/ Any suggestions? Where to go from here? Any tips or workarounds would be appreciated. Thanks, Wade P.S. some notes about leading up to this was posted on the lirc mailing list: https://sourceforge.net/p/lirc/mailman/message/35036744/ https://sourceforge.net/p/lirc/mailman/message/35038602/ -- 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
