Thanks for your comments Minas
> Per my understanding in your system EHCI host also available. Is any
> issue seen if connected to EHCI?
It's already connected to EHCI. The hardware has a GL852GT USB hub on
board, which connects to the RK3188 SoC. The Quectel EC25-E is connected to
GL852GT. There
> Could you please apply follow patches from linux-usb mailing list:
> 1. usb: dwc2: hcd: Fix host channel halt flow
> 2. usb: dwc2: host: Fix transaction errors in host mode
> and test again.
Thanks for your response. I've tried applying the above patches (taken from
https://patchwork.kernel.org/
4 e350 1a00 e89da830 (e5904000)
[ 85.121753] ---[ end trace 505434e875ea1c2b ]---
On Sun, 29 Apr 2018 at 15:44, Amr Bekhit wrote:
> Hello,
> We're working with an embedded system that uses the RK3188 SoC and has a
> Quectel EC25 4G modem connected via USB. We're using Bui
Hello,
We're working with an embedded system that uses the RK3188 SoC and has a
Quectel EC25 4G modem connected via USB. We're using Buildroot 2018.02.1 to
compile the kernel (4.15.16 using the radxarock_defconfig) and root file
system. The system enumerates the USB just fine and Quectel's quectel
