- #LINUX RENESAS USB 3.0 DRIVER HOW TO#
- #LINUX RENESAS USB 3.0 DRIVER INSTALL#
- #LINUX RENESAS USB 3.0 DRIVER DRIVER#
#LINUX RENESAS USB 3.0 DRIVER HOW TO#
But how can you know if your computer has USB 3.0 port or not? In this quick tip, we shall see how to find if your system has USB 3 or USB 2 in Linux. Make sure to amend the bug report with the debug output.Most of the new computers come with USB 3.0 ports these days. So this is definitely a case for the kernel developers. In the kernel source code, function xhci_endpoint_reset has comments along the lines "We might need to implement the config ep cmd in xhci 4.8.1" and "For now just print debug to follow the situation".
#LINUX RENESAS USB 3.0 DRIVER DRIVER#
They get removed, and then the driver tries to initialize the whole thing again (which is the second initialization I saw). So after initializing everything, a reset gets called on both the USB 2.0 and the USB 3.0 root hub. xhci_hcd 0000:05:00.0: Finished xhci_run for USB3 roothub xhci_hcd 0000:05:00.0: new USB bus registered, assigned bus number 2 xhci_hcd 0000:05:00.0: set port power, actual port 1 status = 0x2a0 xhci_hcd 0000:05:00.0: set port power, actual port 0 status = 0x2a0 xhci_hcd 0000:05:00.0: Endpoint 0x81 ep reset callback called Inspecting the debug messages, this here looks very odd: xhci_hcd 0000:05:00.0: Finished xhci_run for USB2 roothub This requires programming experience, so if you don't know how to do that, alternatively file a bug report on whatever kernel bugtracker handles xhci_hcd, even if the devs just tell you that I am stupid and the repeated initialization is normal.
Next thing I'd do is to look at the xhci_hcd source, and recompile with debugging support. If two instances of xhci_hcd are trying to control the card at the same time, then of course this will go wrong.
The Renesas Product Info seems to say that while there are two ports each for each USB 3.0/USB 2.0 legacy root hub, there's only one root hub, so I don't understand what's going on. usb usb4: We don't know the algorithms for LPM for this host, disabling LPM. xhci_hcd 0000:05:00.0: new USB bus registered, assigned bus number 4 xhci_hcd 0000:05:00.0: xHCI Host Controller xhci_hcd 0000:05:00.0: new USB bus registered, assigned bus number 3 Unless I'm overlooking something, it looks like the controller is initialized twice: xhci_hcd 0000:05:00.0: xHCI Host Controller Linux Kernel Bug Tracker - Īrch Linux forum on - discussion regarding the issue Patches for "Renesas uPD72020x workaround" don't work.Re: kernel does not receive any USB3.0 plug/unplug events from the Renesas upd720202 chipset.References to places with people working on the problem: uPD720202 USB 3.0 Host Controller (rev 02)ĭmesg (old without xhci_hcd-debugging and withouth grep Lspci -nn: 05:00.0 USB controller : Renesas Technology Corp. Some say, it is build into the kernel or something.ĭmesg with debugging xhci_hcd enabled and with xhci_hcd greped
#LINUX RENESAS USB 3.0 DRIVER INSTALL#
I didn't find any information on how to install pciehp kernel module on Arch Linux. I also tried to add: pciehp pciehp_force=1Īnd tried to do sudo modprobe pciehp pciehp_force=1īut Arch Linux complains that it doesn't find the kernel module pciehp. This unfortunately didn't help me anything. I googled and tried adding the following kernal parameters intel_iommu=off Xhci_hcd 0000:05:00.0: xHCI host controller not responding, assume dead However, when I do this, I get the following error message: I'm trying to install a CSL USB 3.0 express card to my Arch Linux system.