In case the USB device is a full speed device we have to set dev->epmaxpacketin[0] and dev->epmaxpacketout[0] before doing a get_descriptor_len() because otherwise it's unset during that call. Fixes: 6d1d95a386 ("usb: factor out a usb_setup_descriptor() function") Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> --- drivers/usb/core/usb.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index c068c64c6b..ea244d4bcf 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -332,6 +332,8 @@ static int usb_setup_descriptor(struct usb_device *dev, bool do_read) dev->descriptor->bMaxPacketSize0 = 64; dev->maxpacketsize = PACKET_SIZE_64; } + dev->epmaxpacketin[0] = dev->descriptor->bMaxPacketSize0; + dev->epmaxpacketout[0] = dev->descriptor->bMaxPacketSize0; if (do_read && dev->speed == USB_SPEED_FULL) { int err; @@ -355,10 +357,10 @@ static int usb_setup_descriptor(struct usb_device *dev, bool do_read) err = get_descriptor_len(dev, 64, 8); if (err) return err; - } - dev->epmaxpacketin[0] = dev->descriptor->bMaxPacketSize0; - dev->epmaxpacketout[0] = dev->descriptor->bMaxPacketSize0; + dev->epmaxpacketin[0] = dev->descriptor->bMaxPacketSize0; + dev->epmaxpacketout[0] = dev->descriptor->bMaxPacketSize0; + } switch (dev->descriptor->bMaxPacketSize0) { case 8: -- 2.20.1 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox