Public bug reported: for some ehci controller ,for example ehci controller on fsl_imx6,it using portsc[26-27] to decide a full speed device or high speed device was connected, hub-ehci.c should set the portsc[26-27] to return the right speed.
line:1001 in hub-ehci.c if (dev && dev->attached && (dev->speedmask & USB_SPEED_MASK_HIGH)) { val |= PORTSC_PED; } below is the spec for fsl_imx6 USB PART. PORTSC:27–26 :PSPD Port Speed - Read Only. This register field indicates the speed at which the port is operating. 00 Full Speed 01 Low Speed 10 High Speed 11 Undefined ** Affects: qemu Importance: Undecided Status: New -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1906608 Title: [Feature request]For some ehci controller, qemu should implement using portsc[26-27] to detect the speed of device. Status in QEMU: New Bug description: for some ehci controller ,for example ehci controller on fsl_imx6,it using portsc[26-27] to decide a full speed device or high speed device was connected, hub-ehci.c should set the portsc[26-27] to return the right speed. line:1001 in hub-ehci.c if (dev && dev->attached && (dev->speedmask & USB_SPEED_MASK_HIGH)) { val |= PORTSC_PED; } below is the spec for fsl_imx6 USB PART. PORTSC:27–26 :PSPD Port Speed - Read Only. This register field indicates the speed at which the port is operating. 00 Full Speed 01 Low Speed 10 High Speed 11 Undefined To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1906608/+subscriptions