Hi, Please make sure USB OTG Support is enabled (PCI Mode) in BIOS. BIOS Setup: Device Manager / System Setup / South Cluster Configuration / USB Configuration / USB OTG Support [PCI Mode]
Thanks, Juinee From: Henrik Haugaard Jensen [mailto:[email protected]] Sent: Monday, December 3, 2018 8:52 PM To: Tan, Jui Nee <[email protected]> Subject: RE: [meta-intel] g_ether functionality for Intel E3845 CPU (valley-island, bay-trail) Hi Juinee, I tried building exactly as specified ( I did also add IMAGE_INSTALL_append = " kernel-module-g-ether kernel-module-dwc3-pci " to local.conf). But g_ether module won’t load: : dwc3-pci 0000:00:16.0: enabling device (0000 -> 0002) dwc3 dwc3.1.auto: changing max_speed on rev 5533210a random: crng init done random: 3 urandom warning(s) missed due to ratelimiting EXT4-fs (sda2): re-mounted. Opts: data=ordered IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready Poky (Yocto Project Reference Distro) 2.5.1 intel-corei7-64 /dev/ttyS0 intel-corei7-64 login: root root@intel-corei7-64:~# lsmod Not tainted dwc3_pci 16384 0 - Live 0xffffffffc009e000 root@intel-corei7-64:~# modprobe g_ether g_ether dwc3.1.auto: failed to start g_ether: -2 g_ether dwc3.1.auto: failed to start g_ether: -2 modprobe: can't load module g_ether (kernel/drivers/usb/gadget/legacy/g_ether.ko): unknown symbol in module, or unknown parameter : There is no additional info in /var/log/messages about the unknown symbol/parameter. As mention everythings worked with “Jethro @ kernel ver. 3.10” so I do not think it is hardware. Any suggestions? BR Henrik From: Tan, Jui Nee <[email protected]<mailto:[email protected]>> Sent: Friday, 23 November 2018 03.10 To: Henrik Haugaard Jensen <[email protected]<mailto:[email protected]>>; [email protected]<mailto:[email protected]> Subject: RE: [meta-intel] g_ether functionality for Intel E3845 CPU (valley-island, bay-trail) Hi, Please follow Sumo build procedure that built against Poky (Yocto Project Reference Distro) 2.5.1 meta-intel 9.1 linux-intel 4.14 and add following configurations: • Create file meta-intel/recipes-kernel/linux/linux-intel/usb.cfg and add below kernel configs to file usb.cfg: CONFIG_USB_GADGET=y CONFIG_NOP_USB_XCEIV=y CONFIG_ETHER_GADGET=m CONFIG_USB_DWC3=y # CONFIG_USB_DWC3_HOST is not set (Gadget only!) CONFIG_USB_DWC3_GADGET=y CONFIG_USB_DWC3_PCI=m • To include file "usb.cfg", add below line to kernel recipe file meta-intel/common/recipes-kernel/linux/linux-intel_4.14.bb SRC_URI_append = " file://usb.cfg<file:///\\usb.cfg>" After adding above configurations successfully, build the image and boot it. Finally, run following command on terminal: 1. modprobe g_ether 2. lsmod – after modprobe g_ether, you will find g_ether in the list. 3. Ifconfig – you can see usb0 interface now. Thanks, Juinee From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Henrik Haugaard Jensen Sent: Wednesday, October 31, 2018 7:48 PM To: [email protected]<mailto:[email protected]> Subject: [meta-intel] g_ether functionality for Intel E3845 CPU (valley-island, bay-trail) We have successfully used meta-intel jethro branch for our device based on an intel E3845 CPU. Now we need to upgrade to a newer Linux kernel to get full camera/video/media support. But when building new BSP with sumo it turns out that g_ether usb gadget driver is not working neither with linux-intel 4.9 or 4.14. My related kernel configs ( which works for meta-intel Jethro) are: CONFIG_USB_GADGET=y CONFIG_NOP_USB_XCEIV=y CONFIG_ETHER_GADGET=m CONFIG_USB_DWC3=y # CONFIG_USB_DWC3_HOST is not set (Gadget only!) CONFIG_USB_DWC3_GADGET=y CONFIG_USB_DWC3_PCI=m The error I get is : udc-core: couldn't find an available UDC - added [g_ether] to list of pending drivers and the usb0 network interface does not show up. What am I missing? Best Regards Henrik
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