On Thu, Nov 12, 2020 at 11:01 PM Jonathan Matthew <[email protected]> wrote:
>
> On Thu, Nov 12, 2020 at 03:31:09PM -0500, Morgan Aldridge wrote:
> > >Synopsis: Edimax EW-7811Un V2 not detected by urtwn
> > >Category: kernel amd64
> > >Environment:
> > System : OpenBSD 6.8
> > Details : OpenBSD 6.8 (GENERIC.MP) #0: Wed Oct 28 10:06:34 MDT
> > 2020
> >
> > [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
> >
> > Architecture: OpenBSD.amd64
> > Machine : amd64
> > >Description:
> > I purchased an Edimax EW-7811Un USB WiFi adapter after a number of
> > suggestions that it is commonly supported by urtwn(4) on OpenBSD,
> > but
> > they seem to be shipping new V2 model which is still identified as
> > Realtek, but has a new device ID of 0xb811 (instead of 0x7811).
> >
> > dmesg shows:
> >
> > ugen2 at uhub1 port 2 "Realtek Edimax N150 Adapter" rev 2.00/0.00
> > addr 2
> >
> > usbdevs shows:
> >
> > addr 02: 7392:b811 Realtek, Edimax N150 Adapter
> > high speed, power 500 mA, config 1, rev 0.00, iSerial
> > 08BEAC0EEAA1
> > driver: ugen2
> >
> > fw_update does not fetch the urtwn firmware.
> >
> > I'm not 100% sure that this is still using the same chipset, but it
> > seems like it's at least still using a Realtek chipset, and am
> > happy to provide further details or even send the device to a
> > developer. I'm tempted to just add the new device ID to usbdevs and
> > if_urtwn.c and see if it works, but I don't know what the risks are.
> > >How-To-Repeat:
> > Plug Edimax EW-7811Un V2 to USB port, run fw_update, dmesg, and
> > usbdevs.
> > >Fix:
> > Maybe we can just add the new device ID to usbdevs & if_urtwn.c, but
> > I'm not sure.
>
> It looks like this device is RTL8188EU based (not RTL8188CU like the 7811Un),
> since
> the linux driver they offer for download is called rtl8188EUS, so you'd add
>
> URTWN_DEV_8188EU(EDIMAX, EW7811UNV2)
>
> to the urtwn device list.
Thanks for the tip! I have confirmed that from the Linux drivers and
the following diff works for me on GENERIC.MP amd64:
Index: sys/dev/usb/if_urtwn.c
===================================================================
RCS file: /cvs/src/sys/dev/usb/if_urtwn.c,v
retrieving revision 1.95
diff -u -p -u -p -r1.95 if_urtwn.c
--- sys/dev/usb/if_urtwn.c 12 Nov 2020 13:31:19 -0000 1.95
+++ sys/dev/usb/if_urtwn.c 13 Nov 2020 20:32:45 -0000
@@ -326,6 +326,7 @@ static const struct urtwn_type {
URTWN_DEV_8188EU(DLINK, DWA121B1),
URTWN_DEV_8188EU(DLINK, DWA123D1),
URTWN_DEV_8188EU(DLINK, DWA125D1),
+ URTWN_DEV_8188EU(EDIMAX, EW7811UNV2),
URTWN_DEV_8188EU(ELECOM, WDC150SU2M),
URTWN_DEV_8188EU(REALTEK, RTL8188ETV),
URTWN_DEV_8188EU(REALTEK, RTL8188EU),
Index: sys/dev/usb/usbdevs
===================================================================
RCS file: /cvs/src/sys/dev/usb/usbdevs,v
retrieving revision 1.726
diff -u -p -u -p -r1.726 usbdevs
--- sys/dev/usb/usbdevs 11 Nov 2020 12:59:18 -0000 1.726
+++ sys/dev/usb/usbdevs 13 Nov 2020 20:32:45 -0000
@@ -1704,6 +1704,7 @@ product EDIMAX EW7717 0x7717
EW-7717
product EDIMAX EW7718 0x7718 EW-7718
product EDIMAX EW7722UTN 0x7722 EW-7722UTn
product EDIMAX EW7811UN 0x7811 EW-7811Un
+product EDIMAX EW7811UNV2 0xb811 EW-7811Un V2
product EDIMAX RTL8192CU 0x7822 RTL8192CU
product EDIMAX EW7611ULB 0xa611 EW-7611ULB
product EDIMAX EW7822ULC 0xb822 EW-7822ULC
Index: sys/dev/usb/usbdevs.h
===================================================================
RCS file: /cvs/src/sys/dev/usb/usbdevs.h,v
retrieving revision 1.738
diff -u -p -u -p -r1.738 usbdevs.h
--- sys/dev/usb/usbdevs.h 11 Nov 2020 12:59:44 -0000 1.738
+++ sys/dev/usb/usbdevs.h 13 Nov 2020 20:32:45 -0000
@@ -1,4 +1,4 @@
-/* $OpenBSD: usbdevs.h,v 1.738 2020/11/11 12:59:44 patrick Exp $ */
+/* $OpenBSD$ */
/*
* THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT.
@@ -1711,6 +1711,7 @@
#define USB_PRODUCT_EDIMAX_EW7718 0x7718 /* EW-7718 */
#define USB_PRODUCT_EDIMAX_EW7722UTN 0x7722 /* EW-7722UTn */
#define USB_PRODUCT_EDIMAX_EW7811UN 0x7811 /* EW-7811Un */
+#define USB_PRODUCT_EDIMAX_EW7811UNV2 0xb811 /*
EW-7811Un V2 */
#define USB_PRODUCT_EDIMAX_RTL8192CU 0x7822 /* RTL8192CU */
#define USB_PRODUCT_EDIMAX_EW7611ULB 0xa611 /* EW-7611ULB */
#define USB_PRODUCT_EDIMAX_EW7822ULC 0xb822 /* EW-7822ULC */
Index: sys/dev/usb/usbdevs_data.h
===================================================================
RCS file: /cvs/src/sys/dev/usb/usbdevs_data.h,v
retrieving revision 1.732
diff -u -p -u -p -r1.732 usbdevs_data.h
--- sys/dev/usb/usbdevs_data.h 11 Nov 2020 12:59:44 -0000 1.732
+++ sys/dev/usb/usbdevs_data.h 13 Nov 2020 20:32:46 -0000
@@ -1,4 +1,4 @@
-/* $OpenBSD: usbdevs_data.h,v 1.732 2020/11/11 12:59:44 patrick
Exp $ */
+/* $OpenBSD$ */
/*
* THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT.
@@ -3016,6 +3016,10 @@ const struct usb_known_product usb_known
{
USB_VENDOR_EDIMAX, USB_PRODUCT_EDIMAX_EW7811UN,
"EW-7811Un",
+ },
+ {
+ USB_VENDOR_EDIMAX, USB_PRODUCT_EDIMAX_EW7811UNV2,
+ "EW-7811Un V2",
},
{
USB_VENDOR_EDIMAX, USB_PRODUCT_EDIMAX_RTL8192CU,
