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Date: Wed, 8 May 2024 13:54:40 +0300
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Subject: [PATCH v5 10/11] wifi: rtlwifi: Add rtl8192du/sw.{c,h}
From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
To: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Cc: Ping-Ke Shih <pkshih@realtek.com>,
 Larry Finger <Larry.Finger@lwfinger.net>,
 Stefan Lippers-Hollmann <s.l-h@gmx.de>,
 Christian Hewitt <chewitt@libreelec.tv>
References: <254558da-ea8b-40ea-bd5a-83d13796744f@gmail.com>
Content-Language: en-US
In-Reply-To: <254558da-ea8b-40ea-bd5a-83d13796744f@gmail.com>
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These contain the new module's entry point.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
---
v5:
 - Call it 802.11n instead of 802.11an in the module description.

v4:
 - Delete unnecessary out of memory message.
 - Constify rtl8192du_hal_ops, rtl92du_interface_cfg, rtl92du_hal_cfg.
   (rtl92du_mod_params can't be const because module_param_named()
   doesn't accept it.)
 - Move MODULE_* to the bottom of sw.c.
 - Delete sw.h and the global mutexes. The mutexes were moved to
   struct rtl_priv. sw.h is unnecessary now.
 - Add functions to initialise and free the formerly global variables:
	curveindex_2g
	curveindex_5g
	mutex_for_hw_init
	mutex_for_power_on_off

v3:
 - Add USB ID 2001:330c found by Zenm Chen.

v2:
 - Patch is new in v2, split from patch 3/3 in v1.
---
 .../wireless/realtek/rtlwifi/rtl8192du/sw.c   | 397 ++++++++++++++++++
 1 file changed, 397 insertions(+)
 create mode 100644 drivers/net/wireless/realtek/rtlwifi/rtl8192du/sw.c

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192du/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192du/sw.c
new file mode 100644
index 000000000000..18a855b041c3
--- /dev/null
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192du/sw.c
@@ -0,0 +1,397 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 2009-2012  Realtek Corporation.*/
+
+#include "../wifi.h"
+#include "../core.h"
+#include "../usb.h"
+#include "../base.h"
+#include "../rtl8192d/reg.h"
+#include "../rtl8192d/def.h"
+#include "../rtl8192d/fw_common.h"
+#include "../rtl8192d/hw_common.h"
+#include "../rtl8192d/phy_common.h"
+#include "../rtl8192d/trx_common.h"
+#include "phy.h"
+#include "dm.h"
+#include "fw.h"
+#include "hw.h"
+#include "trx.h"
+#include "led.h"
+
+#include <linux/module.h>
+
+static struct usb_interface *rtl92du_get_other_intf(struct ieee80211_hw *hw)
+{
+	struct usb_interface *intf;
+	struct usb_device *udev;
+	u8 other_interfaceindex;
+
+	/* See SET_IEEE80211_DEV(hw, &intf->dev); in usb.c */
+	intf = container_of_const(wiphy_dev(hw->wiphy), struct usb_interface, dev);
+
+	if (intf->altsetting[0].desc.bInterfaceNumber == 0)
+		other_interfaceindex = 1;
+	else
+		other_interfaceindex = 0;
+
+	udev = interface_to_usbdev(intf);
+
+	return usb_ifnum_to_if(udev, other_interfaceindex);
+}
+
+static int rtl92du_init_shared_data(struct ieee80211_hw *hw)
+{
+	struct usb_interface *other_intf = rtl92du_get_other_intf(hw);
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_priv *other_rtlpriv = NULL;
+	struct ieee80211_hw *other_hw = NULL;
+
+	if (other_intf)
+		other_hw = usb_get_intfdata(other_intf);
+
+	if (other_hw) {
+		/* The other interface was already probed. */
+		other_rtlpriv = rtl_priv(other_hw);
+		rtlpriv->curveindex_2g = other_rtlpriv->curveindex_2g;
+		rtlpriv->curveindex_5g = other_rtlpriv->curveindex_5g;
+		rtlpriv->mutex_for_power_on_off = other_rtlpriv->mutex_for_power_on_off;
+		rtlpriv->mutex_for_hw_init = other_rtlpriv->mutex_for_hw_init;
+
+		if (!rtlpriv->curveindex_2g || !rtlpriv->curveindex_5g ||
+		    !rtlpriv->mutex_for_power_on_off || !rtlpriv->mutex_for_hw_init)
+			return 1;
+
+		return 0;
+	}
+
+	/* The other interface doesn't exist or was not probed yet. */
+	rtlpriv->curveindex_2g = kcalloc(TARGET_CHNL_NUM_2G,
+					 sizeof(*rtlpriv->curveindex_2g),
+					 GFP_KERNEL);
+	rtlpriv->curveindex_5g = kcalloc(TARGET_CHNL_NUM_5G,
+					 sizeof(*rtlpriv->curveindex_5g),
+					 GFP_KERNEL);
+	rtlpriv->mutex_for_power_on_off =
+		kzalloc(sizeof(*rtlpriv->mutex_for_power_on_off), GFP_KERNEL);
+	rtlpriv->mutex_for_hw_init =
+		kzalloc(sizeof(*rtlpriv->mutex_for_hw_init), GFP_KERNEL);
+
+	if (!rtlpriv->curveindex_2g || !rtlpriv->curveindex_5g ||
+	    !rtlpriv->mutex_for_power_on_off || !rtlpriv->mutex_for_hw_init) {
+		kfree(rtlpriv->curveindex_2g);
+		kfree(rtlpriv->curveindex_5g);
+		kfree(rtlpriv->mutex_for_power_on_off);
+		kfree(rtlpriv->mutex_for_hw_init);
+		rtlpriv->curveindex_2g = NULL;
+		rtlpriv->curveindex_5g = NULL;
+		rtlpriv->mutex_for_power_on_off = NULL;
+		rtlpriv->mutex_for_hw_init = NULL;
+		return 1;
+	}
+
+	mutex_init(rtlpriv->mutex_for_power_on_off);
+	mutex_init(rtlpriv->mutex_for_hw_init);
+
+	return 0;
+}
+
+static void rtl92du_deinit_shared_data(struct ieee80211_hw *hw)
+{
+	struct usb_interface *other_intf = rtl92du_get_other_intf(hw);
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	if (!other_intf || !usb_get_intfdata(other_intf)) {
+		/* The other interface doesn't exist or was already disconnected. */
+		kfree(rtlpriv->curveindex_2g);
+		kfree(rtlpriv->curveindex_5g);
+		if (rtlpriv->mutex_for_power_on_off)
+			mutex_destroy(rtlpriv->mutex_for_power_on_off);
+		if (rtlpriv->mutex_for_hw_init)
+			mutex_destroy(rtlpriv->mutex_for_hw_init);
+		kfree(rtlpriv->mutex_for_power_on_off);
+		kfree(rtlpriv->mutex_for_hw_init);
+	}
+}
+
+static int rtl92du_init_sw_vars(struct ieee80211_hw *hw)
+{
+	const char *fw_name = "rtlwifi/rtl8192dufw.bin";
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	int err;
+
+	if (rtl92du_init_shared_data(hw))
+		return 1;
+
+	rtlpriv->dm.dm_initialgain_enable = true;
+	rtlpriv->dm.dm_flag = 0;
+	rtlpriv->dm.disable_framebursting = false;
+	rtlpriv->dm.thermalvalue = 0;
+	rtlpriv->dm.useramask = true;
+
+	/* dual mac */
+	if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G)
+		rtlpriv->phy.current_channel = 36;
+	else
+		rtlpriv->phy.current_channel = 1;
+
+	if (rtlpriv->rtlhal.macphymode != SINGLEMAC_SINGLEPHY)
+		rtlpriv->rtlhal.disable_amsdu_8k = true;
+
+	/* for LPS & IPS */
+	rtlpriv->psc.inactiveps = rtlpriv->cfg->mod_params->inactiveps;
+	rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps;
+	rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps;
+	if (!rtlpriv->psc.inactiveps)
+		pr_info("Inactive Power Save off (module option)\n");
+
+	/* for early mode */
+	rtlpriv->rtlhal.earlymode_enable = false;
+
+	/* for firmware buf */
+	rtlpriv->rtlhal.pfirmware = kmalloc(0x8000, GFP_KERNEL);
+	if (!rtlpriv->rtlhal.pfirmware)
+		return 1;
+
+	rtlpriv->max_fw_size = 0x8000;
+	pr_info("Driver for Realtek RTL8192DU WLAN interface\n");
+	pr_info("Loading firmware file %s\n", fw_name);
+
+	/* request fw */
+	err = request_firmware_nowait(THIS_MODULE, 1, fw_name,
+				      rtlpriv->io.dev, GFP_KERNEL, hw,
+				      rtl_fw_cb);
+	if (err) {
+		pr_err("Failed to request firmware!\n");
+		kfree(rtlpriv->rtlhal.pfirmware);
+		rtlpriv->rtlhal.pfirmware = NULL;
+		return 1;
+	}
+
+	return 0;
+}
+
+static void rtl92du_deinit_sw_vars(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	kfree(rtlpriv->rtlhal.pfirmware);
+	rtlpriv->rtlhal.pfirmware = NULL;
+
+	rtl92du_deinit_shared_data(hw);
+}
+
+static const struct rtl_hal_ops rtl8192du_hal_ops = {
+	.init_sw_vars = rtl92du_init_sw_vars,
+	.deinit_sw_vars = rtl92du_deinit_sw_vars,
+	.read_chip_version = rtl92du_read_chip_version,
+	.read_eeprom_info = rtl92de_read_eeprom_info,
+	.hw_init = rtl92du_hw_init,
+	.hw_disable = rtl92du_card_disable,
+	.enable_interrupt = rtl92de_enable_interrupt,
+	.disable_interrupt = rtl92de_disable_interrupt,
+	.set_network_type = rtl92de_set_network_type,
+	.set_chk_bssid = rtl92de_set_check_bssid,
+	.set_qos = rtl92de_set_qos,
+	.set_bcn_reg = rtl92de_set_beacon_related_registers,
+	.set_bcn_intv = rtl92de_set_beacon_interval,
+	.update_interrupt_mask = rtl92de_update_interrupt_mask,
+	.get_hw_reg = rtl92du_get_hw_reg,
+	.set_hw_reg = rtl92du_set_hw_reg,
+	.update_rate_tbl = rtl92de_update_hal_rate_tbl,
+	.fill_tx_desc = rtl92du_tx_fill_desc,
+	.query_rx_desc = rtl92de_rx_query_desc,
+	.set_channel_access = rtl92de_update_channel_access_setting,
+	.radio_onoff_checking = rtl92de_gpio_radio_on_off_checking,
+	.set_bw_mode = rtl92d_phy_set_bw_mode,
+	.switch_channel = rtl92d_phy_sw_chnl,
+	.dm_watchdog = rtl92du_dm_watchdog,
+	.scan_operation_backup = rtl_phy_scan_operation_backup,
+	.set_rf_power_state = rtl92d_phy_set_rf_power_state,
+	.led_control = rtl92de_led_control,
+	.set_desc = rtl92de_set_desc,
+	.get_desc = rtl92de_get_desc,
+	.enable_hw_sec = rtl92de_enable_hw_security_config,
+	.set_key = rtl92de_set_key,
+	.get_bbreg = rtl92d_phy_query_bb_reg,
+	.set_bbreg = rtl92d_phy_set_bb_reg,
+	.get_rfreg = rtl92d_phy_query_rf_reg,
+	.set_rfreg = rtl92d_phy_set_rf_reg,
+	.linked_set_reg = rtl92d_linked_set_reg,
+	.fill_h2c_cmd = rtl92d_fill_h2c_cmd,
+	.get_btc_status = rtl_btc_status_false,
+	.phy_iq_calibrate = rtl92d_phy_iq_calibrate,
+	.phy_lc_calibrate = rtl92d_phy_lc_calibrate,
+};
+
+static struct rtl_mod_params rtl92du_mod_params = {
+	.sw_crypto = false,
+	.inactiveps = false,
+	.swctrl_lps = false,
+	.debug_level = 0,
+	.debug_mask = 0,
+};
+
+static const struct rtl_hal_usbint_cfg rtl92du_interface_cfg = {
+	/* rx */
+	.rx_urb_num = 8,
+	.rx_max_size = 15360,
+	.usb_rx_hdl = NULL,
+	.usb_rx_segregate_hdl = NULL,
+	/* tx */
+	.usb_tx_cleanup = rtl92du_tx_cleanup,
+	.usb_tx_post_hdl = rtl92du_tx_post_hdl,
+	.usb_tx_aggregate_hdl = rtl92du_tx_aggregate_hdl,
+	.usb_endpoint_mapping = rtl92du_endpoint_mapping,
+	.usb_mq_to_hwq = rtl92du_mq_to_hwq,
+};
+
+static const struct rtl_hal_cfg rtl92du_hal_cfg = {
+	.name = "rtl8192du",
+	.ops = &rtl8192du_hal_ops,
+	.mod_params = &rtl92du_mod_params,
+	.usb_interface_cfg = &rtl92du_interface_cfg,
+
+	.maps[SYS_ISO_CTRL] = REG_SYS_ISO_CTRL,
+	.maps[SYS_FUNC_EN] = REG_SYS_FUNC_EN,
+	.maps[SYS_CLK] = REG_SYS_CLKR,
+	.maps[MAC_RCR_AM] = RCR_AM,
+	.maps[MAC_RCR_AB] = RCR_AB,
+	.maps[MAC_RCR_ACRC32] = RCR_ACRC32,
+	.maps[MAC_RCR_ACF] = RCR_ACF,
+	.maps[MAC_RCR_AAP] = RCR_AAP,
+
+	.maps[EFUSE_TEST] = REG_EFUSE_TEST,
+	.maps[EFUSE_ACCESS] = REG_EFUSE_ACCESS,
+	.maps[EFUSE_CTRL] = REG_EFUSE_CTRL,
+	.maps[EFUSE_CLK] = 0,	/* just for 92se */
+	.maps[EFUSE_CLK_CTRL] = REG_EFUSE_CTRL,
+	.maps[EFUSE_PWC_EV12V] = PWC_EV12V,
+	.maps[EFUSE_FEN_ELDR] = FEN_ELDR,
+	.maps[EFUSE_LOADER_CLK_EN] = 0,
+	.maps[EFUSE_ANA8M] = 0,	/* just for 92se */
+	.maps[EFUSE_HWSET_MAX_SIZE] = HWSET_MAX_SIZE,
+	.maps[EFUSE_MAX_SECTION_MAP] = EFUSE_MAX_SECTION,
+	.maps[EFUSE_REAL_CONTENT_SIZE] = EFUSE_REAL_CONTENT_LEN,
+
+	.maps[RWCAM] = REG_CAMCMD,
+	.maps[WCAMI] = REG_CAMWRITE,
+	.maps[RCAMO] = REG_CAMREAD,
+	.maps[CAMDBG] = REG_CAMDBG,
+	.maps[SECR] = REG_SECCFG,
+	.maps[SEC_CAM_NONE] = CAM_NONE,
+	.maps[SEC_CAM_WEP40] = CAM_WEP40,
+	.maps[SEC_CAM_TKIP] = CAM_TKIP,
+	.maps[SEC_CAM_AES] = CAM_AES,
+	.maps[SEC_CAM_WEP104] = CAM_WEP104,
+
+	.maps[RTL_IMR_BCNDMAINT6] = IMR_BCNDMAINT6,
+	.maps[RTL_IMR_BCNDMAINT5] = IMR_BCNDMAINT5,
+	.maps[RTL_IMR_BCNDMAINT4] = IMR_BCNDMAINT4,
+	.maps[RTL_IMR_BCNDMAINT3] = IMR_BCNDMAINT3,
+	.maps[RTL_IMR_BCNDMAINT2] = IMR_BCNDMAINT2,
+	.maps[RTL_IMR_BCNDMAINT1] = IMR_BCNDMAINT1,
+	.maps[RTL_IMR_BCNDOK8] = IMR_BCNDOK8,
+	.maps[RTL_IMR_BCNDOK7] = IMR_BCNDOK7,
+	.maps[RTL_IMR_BCNDOK6] = IMR_BCNDOK6,
+	.maps[RTL_IMR_BCNDOK5] = IMR_BCNDOK5,
+	.maps[RTL_IMR_BCNDOK4] = IMR_BCNDOK4,
+	.maps[RTL_IMR_BCNDOK3] = IMR_BCNDOK3,
+	.maps[RTL_IMR_BCNDOK2] = IMR_BCNDOK2,
+	.maps[RTL_IMR_BCNDOK1] = IMR_BCNDOK1,
+	.maps[RTL_IMR_TIMEOUT2] = IMR_TIMEOUT2,
+	.maps[RTL_IMR_TIMEOUT1] = IMR_TIMEOUT1,
+
+	.maps[RTL_IMR_TXFOVW] = IMR_TXFOVW,
+	.maps[RTL_IMR_PSTIMEOUT] = IMR_PSTIMEOUT,
+	.maps[RTL_IMR_BCNINT] = IMR_BCNINT,
+	.maps[RTL_IMR_RXFOVW] = IMR_RXFOVW,
+	.maps[RTL_IMR_RDU] = IMR_RDU,
+	.maps[RTL_IMR_ATIMEND] = IMR_ATIMEND,
+	.maps[RTL_IMR_BDOK] = IMR_BDOK,
+	.maps[RTL_IMR_MGNTDOK] = IMR_MGNTDOK,
+	.maps[RTL_IMR_TBDER] = IMR_TBDER,
+	.maps[RTL_IMR_HIGHDOK] = IMR_HIGHDOK,
+	.maps[RTL_IMR_TBDOK] = IMR_TBDOK,
+	.maps[RTL_IMR_BKDOK] = IMR_BKDOK,
+	.maps[RTL_IMR_BEDOK] = IMR_BEDOK,
+	.maps[RTL_IMR_VIDOK] = IMR_VIDOK,
+	.maps[RTL_IMR_VODOK] = IMR_VODOK,
+	.maps[RTL_IMR_ROK] = IMR_ROK,
+	.maps[RTL_IBSS_INT_MASKS] = (IMR_BCNINT | IMR_TBDOK | IMR_TBDER),
+
+	.maps[RTL_RC_CCK_RATE1M] = DESC_RATE1M,
+	.maps[RTL_RC_CCK_RATE2M] = DESC_RATE2M,
+	.maps[RTL_RC_CCK_RATE5_5M] = DESC_RATE5_5M,
+	.maps[RTL_RC_CCK_RATE11M] = DESC_RATE11M,
+	.maps[RTL_RC_OFDM_RATE6M] = DESC_RATE6M,
+	.maps[RTL_RC_OFDM_RATE9M] = DESC_RATE9M,
+	.maps[RTL_RC_OFDM_RATE12M] = DESC_RATE12M,
+	.maps[RTL_RC_OFDM_RATE18M] = DESC_RATE18M,
+	.maps[RTL_RC_OFDM_RATE24M] = DESC_RATE24M,
+	.maps[RTL_RC_OFDM_RATE36M] = DESC_RATE36M,
+	.maps[RTL_RC_OFDM_RATE48M] = DESC_RATE48M,
+	.maps[RTL_RC_OFDM_RATE54M] = DESC_RATE54M,
+
+	.maps[RTL_RC_HT_RATEMCS7] = DESC_RATEMCS7,
+	.maps[RTL_RC_HT_RATEMCS15] = DESC_RATEMCS15,
+};
+
+module_param_named(swenc, rtl92du_mod_params.sw_crypto, bool, 0444);
+module_param_named(debug_level, rtl92du_mod_params.debug_level, int, 0644);
+module_param_named(ips, rtl92du_mod_params.inactiveps, bool, 0444);
+module_param_named(swlps, rtl92du_mod_params.swctrl_lps, bool, 0444);
+module_param_named(debug_mask, rtl92du_mod_params.debug_mask, ullong, 0644);
+MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n");
+MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 0)\n");
+MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n");
+MODULE_PARM_DESC(debug_level, "Set debug level (0-5) (default 0)");
+MODULE_PARM_DESC(debug_mask, "Set debug mask (default 0)");
+
+#define USB_VENDOR_ID_REALTEK		0x0bda
+
+static const struct usb_device_id rtl8192d_usb_ids[] = {
+	{RTL_USB_DEVICE(USB_VENDOR_ID_REALTEK, 0x8193, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(USB_VENDOR_ID_REALTEK, 0x8194, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(USB_VENDOR_ID_REALTEK, 0x8111, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(USB_VENDOR_ID_REALTEK, 0x0193, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(USB_VENDOR_ID_REALTEK, 0x8171, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(USB_VENDOR_ID_REALTEK, 0xe194, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(0x2019, 0xab2c, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(0x2019, 0xab2d, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(0x2019, 0x4903, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(0x2019, 0x4904, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(0x07b8, 0x8193, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(0x20f4, 0x664b, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(0x04dd, 0x954f, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(0x04dd, 0x96a6, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(0x050d, 0x110a, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(0x050d, 0x1105, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(0x050d, 0x120a, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(0x1668, 0x8102, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(0x0930, 0x0a0a, rtl92du_hal_cfg)},
+	{RTL_USB_DEVICE(0x2001, 0x330c, rtl92du_hal_cfg)},
+	{}
+};
+
+MODULE_DEVICE_TABLE(usb, rtl8192d_usb_ids);
+
+static int rtl8192du_probe(struct usb_interface *intf,
+			   const struct usb_device_id *id)
+{
+	return rtl_usb_probe(intf, id, &rtl92du_hal_cfg);
+}
+
+static struct usb_driver rtl8192du_driver = {
+	.name = "rtl8192du",
+	.probe = rtl8192du_probe,
+	.disconnect = rtl_usb_disconnect,
+	.id_table = rtl8192d_usb_ids,
+	.disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(rtl8192du_driver);
+
+MODULE_AUTHOR("Bitterblue Smith	<rtl8821cerfe2@gmail.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Realtek 8192DU 802.11n Dual Mac USB wireless");
+MODULE_FIRMWARE("rtlwifi/rtl8192dufw.bin");
-- 
2.44.0