Arnd Bergmann <arnd@xxxxxxxx> writes: > On Wednesday, July 20, 2016 7:25:19 AM CEST Jes Sorensen wrote: >> Arnd Bergmann <arnd@xxxxxxxx> writes: >> Well it really all depends on how much time I have and how much others >> step up and help contribute to the code. For rtl8xxxu my plans are as >> follows: >> >> 1) rtl8188eu support, since this is the most widely distributed USB >> dongle which isn't currently supported by a non staging driver. I am >> currently working on this together with Andrea Merello. > > Ok, cool. > >> 2) Beacon support for IBSS and AP mode - hopefully this should make it >> possible to default rtl8xxxu for rtl8192cu/rtl8188cu devices and disable >> them in rtlwifi. > > Do we have any indication that those two actually work in rtlwifi at the > moment? My experience seems to match the recommendations for all the > raspberry pi users that use yet another (worse looking) driver: > > https://github.com/raspberrypi/linux/commit/9ee31007a5032a3afe2fcb20c36b34f0ad57df56 I am not really authoritative on that one. I tried it in station mode and it didn't work well for me. I never played with AP mode - It may work better in IBSS or AP mode than it does in station mode. I don't like to pull the rug away under people, which is why I haven't pushed for this. >> > As one data point that I can provide (but you are probably >> > aware of), I could never get my rtl8188cus stick to work with >> > rtlwifi, but I found the older r8712u device to work fine with >> > the staging/rtl8712 driver. >> >> I'd love to hear if the rtl8188cus works better with rtl8xxxu. > > It took me far too long to get the driver running on my machine (all my fault), > but I've tested it now. Unfortunately there is something very wrong > with my home wireless network at the moment, so I can only confirm > that it doesn't work any worse than my Intel Wireless card on 2.4GHz, > but that isn't any good (5GHz devices are fine, but that doesn't > help on a 2.4GHz-only device). > > This is what I see in the kernel log > > [ 773.862848] usb 2-1.2: new high-speed USB device number 8 using ehci-pci > [ 773.957415] usb 2-1.2: New USB device found, idVendor=0bda, idProduct=8176 > [ 773.957425] usb 2-1.2: New USB device strings: Mfr=1, Product=2, > SerialNumber=3 > [ 773.957430] usb 2-1.2: Manufacturer: Realtek > [ 773.957433] usb 2-1.2: SerialNumber: 00e04c000001 > [ 774.115182] usb 2-1.2: Vendor: Realtek > [ 774.115192] usb 2-1.2: Product: > [ 774.115199] usb 2-1.2: rtl8192cu_parse_efuse: dumping efuse (0x80 bytes): > [ 774.115206] usb 2-1.2: 00: 29 81 00 74 ed 00 00 00 > [ 774.115212] usb 2-1.2: 08: ff 00 da 0b 76 81 01 41 > [ 774.115219] usb 2-1.2: 10: 32 00 85 62 7e ad 5c f3 > [ 774.115225] usb 2-1.2: 18: 70 15 9c b1 0a 03 52 65 > [ 774.115231] usb 2-1.2: 20: 61 6c 74 65 6b 00 02 03 > [ 774.115237] usb 2-1.2: 28: 00 00 00 00 00 00 00 00 > [ 774.115242] usb 2-1.2: 30: 00 00 00 00 00 00 00 00 > [ 774.115248] usb 2-1.2: 38: 00 00 00 00 00 00 00 00 > [ 774.115254] usb 2-1.2: 40: 00 00 00 00 00 00 00 00 > [ 774.115260] usb 2-1.2: 48: 00 00 00 00 00 00 00 00 > [ 774.115265] usb 2-1.2: 50: 00 00 00 00 00 00 00 00 > [ 774.115271] usb 2-1.2: 58: 06 00 2a 2a 2a 00 00 00 > [ 774.115277] usb 2-1.2: 60: 2a 2a 2a 00 00 00 00 00 > [ 774.115283] usb 2-1.2: 68: 00 00 00 00 04 04 04 00 > [ 774.115289] usb 2-1.2: 70: 00 00 00 00 00 00 05 00 > [ 774.115295] usb 2-1.2: 78: 10 00 00 00 36 00 00 00 > [ 774.115302] usb 2-1.2: RTL8188CU rev A (TSMC) 1T1R, TX queues 2, > WiFi=1, BT=0, GPS=0, HI PA=0 > [ 774.115308] usb 2-1.2: RTL8188CU MAC: 5c:f3:70:15:9c:b1 > [ 774.115314] usb 2-1.2: rtl8xxxu: Loading firmware > rtlwifi/rtl8192cufw_TMSC.bin > [ 774.115409] usb 2-1.2: Firmware revision 80.0 (signature 0x88c1) > [ 775.692344] rtl8xxxu 2-1.2:1.0 wlan1: renamed from wlan0 > [ 775.721151] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready > [ 775.746653] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready > [ 775.798780] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready > [ 788.414618] wlan2: authenticate with 22:4e:7f:6f:5b:3c > [ 788.452485] wlan2: send auth to 22:4e:7f:6f:5b:3c (try 1/3) > [ 788.457926] wlan2: authenticated > [ 788.462261] wlan2: associate with 22:4e:7f:6f:5b:3c (try 1/3) > [ 788.475159] wlan2: RX AssocResp from 22:4e:7f:6f:5b:3c (capab=0x431 > status=0 aid=1) > [ 788.504683] wlan2: associated That all looks reasonable to me. > throughput for me is 2mbit/s, compared to my intel 2x2 wireless that gets > 5mbit/s on the same network, but I guess that doesn't really mean much > as long as I have problems with the infrastructure. :) Note the rtl8xxxu driver doesn't report speeds properly to NetworkMangler or 'iw' as the API for this relies on confirmed TX speeds, and I only have an easy way of retrieving RX speeds from the RTL device. The vendor driver probably fakes it. > rtl8xxxu IEEE 802.11 ESSID:"openwrt24-ab" > Mode:Managed Frequency:2.462 GHz Access Point: 22:4E:7F:6F:5B:3C > Bit Rate=54 Mb/s Tx-Power=20 dBm > Retry short limit:7 RTS thr=2347 B Fragment thr:off > Power Management:off > Link Quality=47/70 Signal level=-63 dBm > Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 > Tx excessive retries:0 Invalid misc:38 Missed beacon:0 > > iwlwifi IEEE 802.11 ESSID:"openwrt24-ab" > Mode:Managed Frequency:2.462 GHz Access Point: 22:4E:7F:6F:5B:3C > Bit Rate=54 Mb/s Tx-Power=15 dBm > Retry short limit:7 RTS thr:off Fragment thr:off > Power Management:on > Link Quality=65/70 Signal level=-45 dBm > Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 > Tx excessive retries:90 Invalid misc:146 Missed beacon:0 > > >> For the rtl8712 device, rtl8192su?, then potentially that could be added to >> rtl8xxxu as well, but it's not a top priority on my list right now. > > This one: > Bus 001 Device 033: ID 0bda:8171 Realtek Semiconductor Corp. RTL8188SU > 802.11n WLAN Adapter > > I bought the rtl8188su a while ago, while the rtl8188cus (0bda:8176) > is from this year. According to https://wikidevi.com/wiki/Realtek, it > seems to be one year older than the rtl8188cus and was almost as common > in its day. Apparently everyone that used to make ...su device replaced it > with a ...cu or the newer ...eu chips and that is all you can buy these days > on the low end. Gotcha, 8188su is the 1x1 version of it. I do have a 8192su in the drawer somewhere, but the TODO list is a bit long already :) Cheers, Jes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
