kern/57819: Patch for Mercusys NW150US V2 USB wireless network device urtwn(4)

[daleree%gmail.com@localhost]

>Number:         57819
>Category:       kern
>Synopsis:       Patch for Mercusys NW150US V2 USB wireless network device urtwn(4)
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Thu Jan 04 22:10:00 +0000 2024
>Originator:     Daeil Lee
>Release:        NetBSD 10.99.10
>Organization:
>Environment:
NetBSD 13netb 10.99.10 NetBSD 10.99.10 (GENERIC) #0: Fri Jan  5 02:41:50 KST 2024  pistis@DTOP:/home/pistis/obj/sys/arch/amd64/compile/GENERIC amd64
>Description:
Mercusys MW150US V2 isn't recognized in NetBSD even though its chipset(RTL8188EU) is supported by urtwn(4).
>How-To-Repeat:

>Fix:
The diff below adds support to the device.
Here's the relevant dmesg after applying it (I deleted mac address):
[     2.621437] urtwn0: Realtek (0x2c4e) 802.11n NIC (0x0102), rev 2.00/0.00, addr 2
[     2.771437] urtwn0: MAC/BB RTL8188EU, RF 6052 1T1R, address 
[     2.801437] urtwn0: 1 rx pipe, 2 tx pipes

I leave a link to the diff below in case whitespaces are mangled.
https://raw.githubusercontent.com/sitmsiteman/etc/main/mercusys_mw150usv2.diff


Index: if_urtwn.c
===================================================================
RCS file: /cvsroot/src/sys/dev/usb/if_urtwn.c,v
retrieving revision 1.107
diff -u -p -r1.107 if_urtwn.c
--- if_urtwn.c	1 Aug 2023 07:04:16 -0000	1.107
+++ if_urtwn.c	4 Jan 2024 18:35:23 -0000
@@ -215,6 +215,7 @@ static const struct urtwn_dev {
 	/* URTWN_RTL8188E */
 	URTWN_RTL8188E_DEV(DLINK, DWA125D1),
 	URTWN_RTL8188E_DEV(ELECOM, WDC150SU2M),
+	URTWN_RTL8188E_DEV(MERCUSYS, MW150USV2),
 	URTWN_RTL8188E_DEV(REALTEK, RTL8188ETV),
 	URTWN_RTL8188E_DEV(REALTEK, RTL8188EU),
 	URTWN_RTL8188E_DEV(ABOCOM, RTL8188EU),
Index: usbdevs
===================================================================
RCS file: /cvsroot/src/sys/dev/usb/usbdevs,v
retrieving revision 1.811
diff -u -p -r1.811 usbdevs
--- usbdevs	24 Dec 2023 02:42:51 -0000	1.811
+++ usbdevs	4 Jan 2024 18:35:23 -0000
@@ -586,6 +586,7 @@ vendor HIROSE		0x2631	Hirose Electric
 vendor ONEPLUS		0x2717	ONEPLUS
 vendor NHJ		0x2770	NHJ
 vendor PLANEX		0x2c02	Planex Communications
+vendor MERCUSYS		0x2c4e	Mercusys
 vendor VIDZMEDIA	0x3275	VidzMedia Pte Ltd
 vendor AEI		0x3334	AEI
 vendor HANK		0x3353	Hank Connection
@@ -2288,6 +2289,9 @@ product MELCO WLIUCGNM		0x01a2	WLI-UC-GN
 product MELCO WLIUCGNM2T	0x01ee	WLI-UC-GNM2T
 product MELCO WIU2300D		0x0241	WI-U2-300D
 
+/* Mercusys products */
+product	MERCUSYS MW150USV2	0x0102	MW150US V2
+
 /* Merlin products */
 product MERLIN V620		0x1110	Merlin V620