linux-kernel - Re: [PATCH net-next] net: phy: Add c45_phy

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Message-ID: <aDQkLcfeu8zw8CJ_@shell.armlinux.org.uk>
Date: Mon, 26 May 2025 09:19:57 +0100
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Yajun Deng <yajun.deng@...ux.dev>
Cc: Andrew Lunn <andrew@...n.ch>, hkallweit1@...il.com, davem@...emloft.net,
	edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] net: phy: Add c45_phy_ids sysfs entry

On Mon, May 26, 2025 at 08:11:21AM +0000, Yajun Deng wrote:
> c45 device:
> $ ls /sys/class/net/eth0/phydev/
> attached_dev  driver  of_node         phy_id         power       subsystem
> c45_phy_ids   hwmon   phy_has_fixups  phy_interface  statistics  uevent
> 
> $ ls /sys/class/net/eth0/phydev/c45_phy_ids
> mmd10_device_id  mmd17_device_id  mmd23_device_id  mmd2_device_id   mmd7_device_id
> mmd11_device_id  mmd18_device_id  mmd24_device_id  mmd30_device_id  mmd8_device_id
> mmd12_device_id  mmd19_device_id  mmd25_device_id  mmd31_device_id  mmd9_device_id
> mmd13_device_id  mmd1_device_id   mmd26_device_id  mmd3_device_id
> mmd14_device_id  mmd20_device_id  mmd27_device_id  mmd4_device_id
> mmd15_device_id  mmd21_device_id  mmd28_device_id  mmd5_device_id
> mmd16_device_id  mmd22_device_id  mmd29_device_id  mmd6_device_id

I suspect you don't have a PHY that defines all these IDs. Are you sure
your .is_visible() is working properly?

-- 
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