From: bugzilla-daemon@kernel.org
To: linux-bluetooth@vger.kernel.org
Subject: [Bug 220986] MediaTek MT7902 Bluetooth adapter (USB 13d3:3596) - missing kernel support for hardware variant 0x7902
Date: Tue, 20 Jan 2026 23:41:41 +0000 [thread overview]
Message-ID: <bug-220986-62941-sbF7NKkm7o@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-220986-62941@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=220986
--- Comment #4 from Alex (aamolodc@gmail.com) ---
UPDATE 2026-01-21: Root cause identified, kernel fix still needed
CORRECTION: This chip is MT7902, not MT7925.
Evidence:
- PCIe ID: 14c3:7902 ("MT7902 802.11ax PCIe Wireless Network Adapter")
- Hardware variant reports: 0x7902
- Firmware build: 20220107141051
KERNEL CHANGES REQUIRED:
1. drivers/bluetooth/btusb.c - Add USB ID:
{ USB_DEVICE(0x13d3, 0x3596), .driver_info = BTUSB_MEDIATEK |
BTUSB_WIDEBAND_SPEECH }
2. drivers/bluetooth/btmtk.c - Add hardware variant 0x7902 to switch statement:
case 0x7902:
(alongside existing 0x7922, 0x7925, 0x7961)
3. linux-firmware - Include MT7902 Bluetooth firmware
(BT_RAM_CODE_MT7902_1_1_hdr.bin)
--
You may reply to this email to add a comment.
You are receiving this mail because:
You are the assignee for the bug.
prev parent reply other threads:[~2026-01-20 23:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-16 9:35 [Bug 220986] New: MediaTek MT7925 Bluetooth adapter (USB 13d3:3596) fails to initialize - reports as unsupported hardware variant 0x7902 bugzilla-daemon
2026-01-16 12:52 ` [Bug 220986] " bugzilla-daemon
2026-01-20 22:27 ` bugzilla-daemon
2026-01-20 22:35 ` bugzilla-daemon
2026-01-20 22:37 ` bugzilla-daemon
2026-01-20 23:39 ` [Bug 220986] MediaTek MT7902 Bluetooth adapter (USB 13d3:3596) - missing kernel support for " bugzilla-daemon
2026-01-20 23:41 ` bugzilla-daemon [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=bug-220986-62941-sbF7NKkm7o@https.bugzilla.kernel.org/ \
--to=bugzilla-daemon@kernel.org \
--cc=linux-bluetooth@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox