On 20.8.2025 17.38, Sakari Ailus wrote:
Check that a device is a high-speed one before proceeding to parse the
eUSB2 isochronous endpoint companion descriptors.
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
drivers/usb/core/config.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index cda595b4014f..29fcbd6de482 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -507,7 +507,8 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno,
}
/* Parse a possible eUSB2 periodic endpoint companion descriptor */
- if (bcdUSB == 0x0220 && !le16_to_cpu(d->wMaxPacketSize) &&
+ if (udev->speed == USB_SPEED_HIGH && bcdUSB == 0x0220 &&
+ !le16_to_cpu(d->wMaxPacketSize) &&
(usb_endpoint_xfer_isoc(d) || usb_endpoint_xfer_int(d)))
usb_parse_eusb2_isoc_endpoint_companion(ddev, cfgno, inum, asnum,
endpoint, buffer, size);
Acked-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
