On Sat, Feb 09, 2019 at 07:46:37PM +0100, Lorenzo Bianconi wrote: > > as already reported here [1], that there are probing issues of mt76 using TP-Link Archer T2UH (wifi USB dongle) on Raspberry Pi 3 B+. > > > > I retested it with recent linux-next 20190208 (aarch64 defconfig + enabling mt76 driver) and got the following output after plugin the wifi dongle: > > > > [ 29.778524] usb 1-1.3: new high-speed USB device number 6 using dwc2 > > [ 31.794581] usb 1-1.3: reset high-speed USB device number 6 using dwc2 > > [ 31.919916] mt76x0u 1-1.3:1.0: ASIC revision: 76100002 MAC revision: 76502000 > > [ 32.304412] dwc2 3f980000.usb: dwc2_update_urb_state(): trimming xfer length > > [ 32.325724] dwc2 3f980000.usb: dwc2_update_urb_state(): trimming xfer length > > [ 32.346866] dwc2 3f980000.usb: dwc2_update_urb_state(): trimming xfer length > > [ 33.410559] mt76x0u 1-1.3:1.0: firmware upload timed out > > [ 33.435458] mt76x0u: probe of 1-1.3:1.0 failed with error -110 > > [ 33.454829] usbcore: registered new interface driver mt76x0u > > > > I took the firmware files from here [2]. > > > > Btw there is another issue, if i disconnect the wifi dongle during probe i'm getting a endless flood of the following output: > > > > mt76x0u 1.1.3:1.0: rx urb failed: -71 > > > > Any chance to narrow down these issues? > > Hi Stefan, > > could you please test the following series: > https://patchwork.kernel.org/cover/10764453/ > Applying this series I am able to connect to my home AP using an Asus > USB-AC51 (mt76x0u) connected to a Raspberry Pi 3 B+. > I am running rpi-5.0.y branch of https://github.com/raspberrypi/linux.git How the patch series fixed the issue since it was reported before that it does not work on 4.19.x which do not use scatter gatter I/O ? Or it is regression ? 4.19.x driver works with rasperrypi/linux but -next does not ? Stanislaw
