Hello Larry, Sorry about the delay, I was on holiday last week. On Sat, 5 May 2018 16:11:13 -0500 Larry Finger <Larry.Finger@xxxxxxxxxxxx> wrote: > On 05/04/2018 02:20 PM, Mylène Josserand wrote: > > Hello everyone, > > > > I am currently testing a USB Wifi dongle LM816 [1] on a custom platform > > based on an IMX6. > > > > My configuration: > > kernel from mainline: v4.14 > > driver: staging R8188EU > > firmware: rtl8188eu from linux-firmware, last commit > > a3a26af24e29c818ef9b5661856018e21a5c49fb > > > > When I tried to set the wlan interface up, it says that "link is not > > ready" and that's all. Because of that, it fails to scan available > > networks. > > > > Here are commands used and their output: > > > > # dmesg > > [...] > > [ 14.690152] r8188eu: module is from the staging directory, the > > quality is unknown, you have been warned. > > [ 14.703105] Chip Version > > Info: CHIP_8188E_Normal_Chip_TSMC_D_CUT_1T1R_RomVer(0) > > [...] > > > > # lsusb > > Bus 002 Device 004: ID 0bda:8179 <-- LM816 > > Bus 002 Device 003: ID 0424:9e00 > > Bus 002 Device 002: ID 0424:2517 > > Bus 002 Device 001: ID 1d6b:0002 > > Bus 001 Device 001: ID 1d6b:0002 > > > > # lsmod > > Module Size Used by Tainted: G > > dw_hdmi_ahb_audio 16384 0 > > r8188eu 401408 0 > > coda 61440 0 > > imx_vdoa 16384 1 coda > > v4l2_mem2mem 24576 1 coda > > videobuf2_vmalloc 16384 1 coda > > evbug 16384 0 > > > > # ifconfig wlan0 up > > [ 447.639524] MAC Address = 5c:f3:70:3d:5c:71 > > [ 447.653636] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready > > # > > # > > # iw wlan0 scan > > command failed: No such device (-19) > > > > > > Does anyone already have this issue with this dongle? > > If it is not the case, what is your setup? Which firmware? Which driver? > > Any help will be very appreciated. > > > > Thanks in advance, > > Best regards, > > > > [1]: > > https://www.lm-technologies.com/product/wifi-usb-nano-adapter-150mbps-lm816/ > > I am running kernel 4.17.0-rc3 under openSUSE Tumbleweed KDE on a Toshiba > laptop, and controlling networks with NetworkManager. I am running a kernel v4.14.0. The last commit I have for this driver is: b24413180f56 'License cleanup: add SPDX GPL-2.0 license identifier to files with no license'. There is many new commits on top of it. I will try to update the driver or my kernel to have the last version. > When I plug my dongle in, > the device connects automatically. The firmware I am using has the following md5sum: > > aaef52a47852e599cbff63a3e7f96a94 /lib/firmware/rtlwifi/rtl8188eufw.bin Okay, I have the same md5sum so we are using the same firmware: aaef52a47852e599cbff63a3e7f96a94 /lib/firmware/rtlwifi/rtl8188eufw.bin > > My dongle shows the following with lsusb: > ID 0bda:8179 Realtek Semiconductor Corp. RTL8188EUS 802.11n Wireless Network Adapter Same here: ID 0bda:8179 Realtek Semiconductor Corp. RTL8188EUS 802.11n Wireless Network Adapter > > Mine shows as an A-cut: > Chip Version Info: CHIP_8188E_Normal_Chip_TSMC_A_CUT_1T1R_RomVer(0) > > Yours is a D-cut, but I would not expect any difference from that. The only > place that information is used is in the log entry shown above. > > If you want to try a different driver, there is one at > http://github.com/lwfinger/rtl8188eu.git > > Larry > > I will try to update my kernel and I will let you know if it is now working (or not). Anyway, thanks for your help! Best regards, -- Mylène Josserand, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering http://bootlin.com
