diff options
Diffstat (limited to 'results/scraper/launchpad-without-comments/1906608')
| -rw-r--r-- | results/scraper/launchpad-without-comments/1906608 | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/results/scraper/launchpad-without-comments/1906608 b/results/scraper/launchpad-without-comments/1906608 new file mode 100644 index 00000000..3db360ae --- /dev/null +++ b/results/scraper/launchpad-without-comments/1906608 @@ -0,0 +1,17 @@ + [Feature request]For some ehci controller, qemu should implement using portsc[26-27] to detect the speed of device. + +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 \ No newline at end of file |