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384cc80f30
Expose the device's Serial Number (SN) and UUID from EFUSE via two read-only sysfs attributes, `serial_number` and `uuid`, on the ieee80211 phy device under the `rtw89_usb` attribute group. This hardware identification information is essential for user-space applications to uniquely identify, track, and manage specific Wi-Fi adapters. For example, in automated factory provisioning or device management systems, user-space tools rely on the EFUSE serial number and UUID to bind configurations to specific physical adapters. Currently, standard wireless APIs do not expose this low-level hardware information, making these sysfs nodes the only viable solution for user space to extract this data. The attributes are gated behind a new RTW89_QUIRK_HW_INFO_SYSFS quirk, enabled only for the VID 0x28de / PID 0x2432 device via the dev_id_quirks field in rtw89_driver_info. Example usage from user-space: $ cat /sys/class/ieee80211/phy0/rtw89_usb/serial_number 3642000123 $ cat /sys/class/ieee80211/phy0/rtw89_usb/uuid aaec2b7c-0a55-4727-8de0-b30febccbbaa Cc: Elliot Saba <sabae@valvesoftware.com> Cc: Charles Lohr <charlesl@valvesoftware.com> Signed-off-by: Johnson Tsai <wenjie.tsai@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20260529075032.16807-3-pkshih@realtek.com |
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| rtl8xxxu | ||
| rtl818x | ||
| rtlwifi | ||
| rtw88 | ||
| rtw89 | ||
| Kconfig | ||
| Makefile | ||