diff options
| author | Martin Kaistra <martin.kaistra@linutronix.de> | 2025-09-01 14:16:13 +0200 |
|---|---|---|
| committer | Ping-Ke Shih <pkshih@realtek.com> | 2025-09-09 09:18:09 +0800 |
| commit | 00afddfe4c995efc2fd46ad13a67a764cca597e4 (patch) | |
| tree | 388fa5e51e9e0ad4b5d7f7936681e23a3c03384a /drivers/net | |
| parent | wifi: rtw89: 8852bt: Remove redundant off_reverse variables (diff) | |
| download | linux-00afddfe4c995efc2fd46ad13a67a764cca597e4.tar.gz linux-00afddfe4c995efc2fd46ad13a67a764cca597e4.zip | |
wifi: rtl8xxxu: expose efuse via debugfs
The efuse contains the mac address and calibration data. During
manufacturing and testing it can be necessary to read and check this
data.
Add a debugfs interface to make it available to userspace.
Signed-off-by: Martin Kaistra <martin.kaistra@linutronix.de>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250901121613.1876109-1-martin.kaistra@linutronix.de
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/realtek/rtl8xxxu/core.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/core.c b/drivers/net/wireless/realtek/rtl8xxxu/core.c index 9e00dc020e30..3ded5952729f 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/core.c @@ -1901,6 +1901,27 @@ static void rtl8xxxu_dump_efuse(struct rtl8xxxu_priv *priv) priv->efuse_wifi.raw, EFUSE_MAP_LEN, true); } +static ssize_t read_file_efuse(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct rtl8xxxu_priv *priv = file_inode(file)->i_private; + + return simple_read_from_buffer(user_buf, count, ppos, + priv->efuse_wifi.raw, EFUSE_MAP_LEN); +} + +static const struct debugfs_short_fops fops_efuse = { + .read = read_file_efuse, +}; + +static void rtl8xxxu_debugfs_init(struct rtl8xxxu_priv *priv) +{ + struct dentry *phydir; + + phydir = debugfs_create_dir("rtl8xxxu", priv->hw->wiphy->debugfsdir); + debugfs_create_file("efuse", 0400, phydir, priv, &fops_efuse); +} + void rtl8xxxu_reset_8051(struct rtl8xxxu_priv *priv) { u8 val8; @@ -7975,6 +7996,7 @@ static int rtl8xxxu_probe(struct usb_interface *interface, } rtl8xxxu_init_led(priv); + rtl8xxxu_debugfs_init(priv); return 0; |