[PATCH 4/9] ax88179_178a: Obtain speed and duplex from Interrupt URB
From: Birger Koblitz <hidden>
Date: 2026-07-01 05:52:03
Also in:
linux-usb, lkml
Subsystem:
networking drivers, the rest, usb networking drivers · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
For newer AX179A/772D firmwares and the AX88279, the interrupt URB response also contains information on the Ethernet speed and duplex status. Read this in order to use it to configure the link. Signed-off-by: Birger Koblitz <redacted> --- drivers/net/usb/ax88179_178a.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index fadf449fa5df70d4aed706b7488ac61d4cdf4cc9..16528d873e804fde5dcc27659048882eee1c3eaa 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c@@ -474,6 +474,7 @@ static int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, static void ax88179_status(struct usbnet *dev, struct urb *urb) { + struct ax88179_data *data = dev->driver_priv; struct ax88179_int_data *event; u32 link;
@@ -484,6 +485,9 @@ static void ax88179_status(struct usbnet *dev, struct urb *urb) le32_to_cpus((void *)&event->intdata1); link = (((__force u32)event->intdata1) & AX_INT_PPLS_LINK) >> 16; + data->speed = (((__force u32)event->intdata1) >> 8) & 0x7; + data->full_duplex = (((__force u32)event->intdata1) >> 12) & 0x1; + data->link = link; if (netif_carrier_ok(dev->net) != link) { usbnet_link_change(dev, link, 1);
--
2.47.3