jaro44

It's probably better to post how you patched and built it, as we will probably have to apply that patch too.

I only add id for dlink dwa-121

diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
--- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c
+++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
@@ -47,7 +47,8 @@ static struct usb_device_id rtw_usb_id_tbl[] = {
 	{USB_DEVICE(0x2001, 0x330F)}, /* DLink DWA-125 REV D1 */
 	{USB_DEVICE(0x2001, 0x3310)}, /* Dlink DWA-123 REV D1 */
 	{USB_DEVICE(0x2001, 0x3311)}, /* DLink GO-USB-N150 REV B1 */
+	{USB_DEVICE(0x2001, 0x331B)}, /* D-Link DWA-121 rev B1 */
 	{USB_DEVICE(0x0df6, 0x0076)}, /* Sitecom N150 v2 */
 	{}	/* Terminating entry */
 };

You can may be zip and attached your own builded working version so that someone else with the same problem can benefits from your work too. 

Big thx #PLi® Contributor for getting to the problem.

it was supposed to be thx for #neo, but something went wrong

I build and install patched kernel-module-r8188eu-4.2.1 for pure hd, and dwa121 work fine

Big thx #PLi® Contributor for getting to the problem.

ok, thx