usb usb1-port1: disabled by hub (EMI?), re-enabling - Printable Version +- Kodi Community Forum (https://forum.kodi.tv) +-- Forum: Discussions (https://forum.kodi.tv/forumdisplay.php?fid=222) +--- Forum: Hardware (https://forum.kodi.tv/forumdisplay.php?fid=112) +--- Thread: usb usb1-port1: disabled by hub (EMI?), re-enabling (/showthread.php?tid=344392) |
usb usb1-port1: disabled by hub (EMI?), re-enabling - praveendeshmane - 2019-06-02 ---Setup--- 1) We are evaluating using Raspberry Pi Compute Module CM3. 2) USB-HUB and USB-UART are boarded on the IO board. 3) USB-HUB is working in Self-power mode. 4) VBUS-detect of USB-HUB uses the same 3.3V power supply as CM3. 5) Two LTE modules are connected to USB-HUB via USB-SERIAL and each LTE module takes 2A ---Protocol--- AT commands ---Problem---- The LTE modules which are connected to USB-HUB are disconnecting.This problem occurs only sometimes not always Following are kernel Logs. Kerenl log: 19:47:58 raspberrypi kernel: [ 9301.001438] usb usb1-port1: disabled by hub (EMI?), re-enabling... 19:47:58 raspberrypi kernel: [ 9301.001457] usb 1-1: USB disconnect, device number 11 19:47:58 raspberrypi kernel: [ 9301.001463] usb 1-1.1: USB disconnect, device number 12 19:47:58 raspberrypi kernel: [ 9301.001668] ftdi_sio ttyUSB2: error from flowcontrol urb 19:47:58 raspberrypi kernel: [ 9301.001872] ftdi_sio ttyUSB2: FTDI USB Serial Device converter now disconnected from ttyUSB2 19:47:58 raspberrypi kernel: [ 9301.001906] ftdi_sio 1-1.1:1.0: device disconnected 19:47:58 raspberrypi kernel: [ 9301.002107] ftdi_sio ttyUSB3: error from flowcontrol urb 19:47:58 raspberrypi kernel: [ 9301.003371] ftdi_sio ttyUSB3: FTDI USB Serial Device converter now disconnected from ttyUSB3 19:47:58 raspberrypi kernel: [ 9301.003429] ftdi_sio 1-1.1:1.1: device disconnected 19:47:58 raspberrypi kernel: [ 9301.010150] ftdi_sio ttyUSB4: FTDI USB Serial Device converter now disconnected from ttyUSB4 19:47:58 raspberrypi kernel: [ 9301.010212] ftdi_sio 1-1.1:1.2: device disconnected 19:47:58 raspberrypi kernel: [ 9301.010430] ftdi_sio ttyUSB5: error from flowcontrol urb 19:47:58 raspberrypi kernel: [ 9301.018012] ftdi_sio ttyUSB5: FTDI USB Serial Device converter now disconnected from ttyUSB5 ---Question--- Any investigation method and solution? RE: usb usb1-port1: disabled by hub (EMI?), re-enabling - Klojum - 2019-06-02 (2019-06-02, 11:46)praveendeshmane Wrote: Any investigation method and solution? Moved the thread to the Hardware section for now. - How is the Kodi forum or Kodi application related to your above questions? - Do not post log files directly into our forum, use pastebin websites for that. |