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Date: Sat, 13 Jun 2026 16:57:54 +0200
From: Nicolai Buchwitz <nb@tipi-net.de>
To: zjzhao@edatec.cn
Cc: hayeswang@realtek.com, andrew+netdev@lunn.ch, linux-usb@vger.kernel.org,
 netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] r8152: add vendor/device ID for CoreChips SR9900
In-Reply-To: <20260613090154.1975753-1-zjzhao@edatec.cn>
References: <20260613090154.1975753-1-zjzhao@edatec.cn>
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On 13.6.2026 11:01, zjzhao@edatec.cn wrote:
> From: zjzhao-eda <zjzhao@edatec.cn>
> 
> The CoreChips SR9900 (0x0fe6:0x9900) is a USB 2.0 10/100
> Ethernet adapter. Testing shows it works correctly with the
> r8152 driver, reaching wire speed (94 Mbps) with zero packet
> loss on both TCP and UDP.

Do you know how they differ to the other CoreChip devices (eg.
drivers/net/usb/sr9800.c and others)?

> 
> Tested on Raspberry Pi, including hotplug and extended data
> transfer.
> 
> Signed-off-by: zjzhao-eda <zjzhao@edatec.cn>
> ---
>  drivers/net/usb/r8152.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
> index d61074178279..ea1733e3619c 100644
> --- a/drivers/net/usb/r8152.c
> +++ b/drivers/net/usb/r8152.c
> @@ -10062,6 +10062,7 @@ static const struct usb_device_id 
> rtl8152_table[] = {
>  	{ USB_DEVICE(VENDOR_ID_DELL,    0xb097) },
>  	{ USB_DEVICE(VENDOR_ID_ASUS,    0x1976) },
>  	{ USB_DEVICE(VENDOR_ID_TRENDNET, 0xe02b) },
> +	{ USB_DEVICE(0x0fe6, 0x9900) },

Instead of hardcoded 0x0fe6, please add a proper VENDOR_ID define in 
include/linux/usb/r8152.h

>  	{}
>  };

Thanks
Nicolai