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[92.254.21.157]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-5f625592cffsm1004787a12.35.2025.04.18.07.06.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Apr 2025 07:06:51 -0700 (PDT) From: Henk Vergonet To: linux-wireless@vger.kernel.org Cc: Felix Fietkau , Lorenzo Bianconi , Henk Vergonet Subject: [PATCH] [PATCH v2] wifi: mt76x2: Add support for LiteOn WN4516R and WN4519R Date: Fri, 18 Apr 2025 16:06:31 +0200 Message-ID: <20250418140631.31014-1-henk.vergonet@gmail.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Ads support for: - LiteOn WN4516R - LiteOn WN4519R Both use: - A nonstandard USB connector - Mediatek chipset MT7600U - ASIC revision: 76320044 Disabled VHT support on ASIC revision 76320044: This fixes the 5G connectibity issue on LiteOn WN4519R module see https://github.com/openwrt/mt76/issues/971 And may also fix the 5G issues on the XBox One Wireless Adapter see https://github.com/openwrt/mt76/issues/200 I have looked at the FCC info related to the MT7632U chip as mentioned in here: https://github.com/openwrt/mt76/issues/459 These confirm the chipset does not support 'ac' mode and hence VHT should be turned of. Signed-off-by: Henk Vergonet --- drivers/net/wireless/mediatek/mt76/mt76x2/usb.c | 2 ++ drivers/net/wireless/mediatek/mt76/mt76x2/usb_init.c | 12 +++++++++++- 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c index 84ef80ab4afb..96cecc576a98 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c @@ -17,6 +17,8 @@ static const struct usb_device_id mt76x2u_device_table[] = { { USB_DEVICE(0x057c, 0x8503) }, /* Avm FRITZ!WLAN AC860 */ { USB_DEVICE(0x7392, 0xb711) }, /* Edimax EW 7722 UAC */ { USB_DEVICE(0x0e8d, 0x7632) }, /* HC-M7662BU1 */ + { USB_DEVICE(0x0471, 0x2126) }, /* LiteOn WN4516R module, nonstandard USB connector */ + { USB_DEVICE(0x0471, 0x7600) }, /* LiteOn WN4519R module, nonstandard USB connector */ { USB_DEVICE(0x2c4e, 0x0103) }, /* Mercury UD13 */ { USB_DEVICE(0x0846, 0x9014) }, /* Netgear WNDA3100v3 */ { USB_DEVICE(0x0846, 0x9053) }, /* Netgear A6210 */ diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_init.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_init.c index 33a14365ec9b..eb5e957f2f1b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_init.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_init.c @@ -191,6 +191,7 @@ int mt76x2u_register_device(struct mt76x02_dev *dev) { struct ieee80211_hw *hw = mt76_hw(dev); struct mt76_usb *usb = &dev->mt76.usb; + bool vht; int err; INIT_DELAYED_WORK(&dev->cal_work, mt76x2u_phy_calibrate); @@ -217,7 +218,16 @@ int mt76x2u_register_device(struct mt76x02_dev *dev) /* check hw sg support in order to enable AMSDU */ hw->max_tx_fragments = dev->mt76.usb.sg_en ? MT_TX_SG_MAX_SIZE : 1; - err = mt76_register_device(&dev->mt76, true, mt76x02_rates, + switch (dev->mt76.rev) { + /* these ASIC revisions do not support VHT */ + case 0x76320044: + vht = false; + break; + default: + vht = true; + break; + } + err = mt76_register_device(&dev->mt76, vht, mt76x02_rates, ARRAY_SIZE(mt76x02_rates)); if (err) goto fail;