bpa wrote: > What is the rating of the adaptor ? > How long is the power lead ? has it been extended ? > > Back to your previous question. My feeling it that a powered hub would > not help as you are not getting the "over-current" messages. > I don't know the significance/ramifications of "under voltage" ? > > If equipment swapping was the answer - I'd look for a different CD > drive - but there's little reason to believe it may help as the CD drive > works OK most of the time and in standalone test.
Latest test is with 5v 2.4 amp power. No extender. Dmesg shows : 665.449200] Under-voltage detected! (0x00050005) [ 669.609176] rpi_firmware_get_throttled: 5 callbacks suppressed [ 669.609186] Voltage normalised (0x00000000) [ 685.019116] usb 1-1.3: new high-speed USB device number 8 using dwc_otg [ 685.154078] usb 1-1.3: New USB device found, idVendor=1c6b, idProduct=a223, bcdDev ice= 0.00 [ 685.154107] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 685.154122] usb 1-1.3: Product: Mass Storage Device [ 685.154136] usb 1-1.3: Manufacturer: USB2.0 External [ 685.154151] usb 1-1.3: SerialNumber: 97 436122507494 [ 685.157394] usb-storage 1-1.3:1.0: USB Mass Storage device detected [ 685.158195] scsi host0: usb-storage 1-1.3:1.0 [ 686.178906] scsi 0:0:0:0: CD-ROM ASUS SDRW-08D2S-U BA01 PQ: 0 A NSI: 0 [ 686.186999] sr 0:0:0:0: Power-on or device reset occurred [ 686.202853] sr 0:0:0:0: [sr0] scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda tray [ 686.250584] sr 0:0:0:0: Attached scsi CD-ROM sr0 [ 686.251241] sr 0:0:0:0: Attached scsi generic sg0 type 5 [ 732.009164] Under-voltage detected! (0x00050005) [ 740.329123] Voltage normalised (0x00000000) [ 862.711186] dwc_otg 3f980000.usb: dev 1.3 ep1in scatterlist error -121/-121 [ 924.769078] usb 1-1.3: reset high-speed USB device number 8 using dwc_otg [ 924.906550] sr 0:0:0:0: Power-on or device reset occurred [ 1030.624295] dwc_otg 3f980000.usb: dev 1.3 ep1in scatterlist error -121/-121 ------------------------------------------------------------------------------------ ------------------------------------------------------------------------ castalla's Profile: http://forums.slimdevices.com/member.php?userid=15624 View this thread: http://forums.slimdevices.com/showthread.php?t=47288 _______________________________________________ plugins mailing list plugins@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/plugins
