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wifi: rtl8xxxu: Dump the efuse right after reading it

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Someone reported a problem with their TP-Link WN722N (RTL8188EUS):

usb 1-1: This Realtek USB WiFi dongle (0x2357:0x010c) is untested!
usb 1-1: Please report results to Jes.Sorensen@gmail.com
usb 1-1: Fatal - failed to parse EFuse
rtl8xxxu: probe of 1-1:1.0 failed with error -22

This error can happen when the first two bytes of the efuse don't have
the expected magic value of 0x8129. In a situation like this it could
be useful to see the contents of the efuse.

Dump the efuse right after reading it, before trying to parse it.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/1f544dc4-17f6-4401-995d-5cb4567b82fa@gmail.com
This commit is contained in:
Bitterblue Smith
2025-10-09 14:53:37 +03:00
committed by Ping-Ke Shih
parent 7aeb8c118e
commit fb5183aa65
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/wireless/realtek/rtl8xxxu/core.c
View File

@@ -7910,15 +7910,15 @@ static int rtl8xxxu_probe(struct usb_interface *interface,
goto err_set_intfdata;
}
if (rtl8xxxu_debug & RTL8XXXU_DEBUG_EFUSE)
rtl8xxxu_dump_efuse(priv);
ret = priv->fops->parse_efuse(priv);
if (ret) {
dev_err(&udev->dev, "Fatal - failed to parse EFuse\n");
goto err_set_intfdata;
}
if (rtl8xxxu_debug & RTL8XXXU_DEBUG_EFUSE)
rtl8xxxu_dump_efuse(priv);
rtl8xxxu_print_chipinfo(priv);
ret = priv->fops->load_firmware(priv);