diff --git a/Documentation/ABI/testing/sysfs-class-net-peak_usb b/Documentation/ABI/testing/sysfs-class-net-peak_usb
new file mode 100644
index 000000000000..9e3d0bf4d4b2
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-net-peak_usb
@@ -0,0 +1,19 @@
+
+What:		/sys/class/net/<iface>/peak_usb/can_channel_id
+Date:		November 2022
+KernelVersion:	6.2
+Contact:	Stephane Grosjean <s.grosjean@peak-system.com>
+Description:
+		PEAK PCAN-USB devices support user-configurable CAN channel
+		identifiers. Contrary to a USB serial number, these identifiers
+		are writable and can be set per CAN interface. This means that
+		if a USB device exports multiple CAN interfaces, each of them
+		can be assigned a unique channel ID.
+		This attribute provides read-only access to the currently
+		configured value of the channel identifier. Depending on the
+		device type, the identifier has a length of 8 or 32 bit. The
+		value read from this attribute is always an 8 digit 32 bit
+		hexadecimal value in big endian format. If the device only
+		supports an 8 bit identifier, the upper 24 bit of the value are
+		set to zero.
+
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
index 3bfd27742ae4..676923bd4213 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
@@ -15,6 +15,8 @@
 #include <linux/netdevice.h>
 #include <linux/usb.h>
 #include <linux/ethtool.h>
+#include <linux/sysfs.h>
+#include <linux/device.h>
 
 #include <linux/can.h>
 #include <linux/can/dev.h>
@@ -53,6 +55,26 @@ static const struct usb_device_id peak_usb_table[] = {
 
 MODULE_DEVICE_TABLE(usb, peak_usb_table);
 
+static ssize_t can_channel_id_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct net_device *netdev = to_net_dev(dev);
+	struct peak_usb_device *peak_dev = netdev_priv(netdev);
+
+	return sysfs_emit(buf, "%08X\n", peak_dev->can_channel_id);
+}
+static DEVICE_ATTR_RO(can_channel_id);
+
+/* mutable to avoid cast in attribute_group */
+static struct attribute *peak_usb_sysfs_attrs[] = {
+	&dev_attr_can_channel_id.attr,
+	NULL,
+};
+
+static const struct attribute_group peak_usb_sysfs_group = {
+	.name	= "peak_usb",
+	.attrs	= peak_usb_sysfs_attrs,
+};
+
 /*
  * dump memory
  */
@@ -961,6 +983,9 @@ static int peak_usb_create_dev(const struct peak_usb_adapter *peak_usb_adapter,
 	/* add ethtool support */
 	netdev->ethtool_ops = peak_usb_adapter->ethtool_ops;
 
+	/* register peak_usb sysfs files */
+	netdev->sysfs_groups[0] = &peak_usb_sysfs_group;
+
 	init_usb_anchor(&dev->rx_submitted);
 
 	init_usb_anchor(&dev->tx_submitted);