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usb-dev: limit the size of outgoing packets

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Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
Sean Cross 2019-03-10 22:40:52 +08:00
parent 2d7c7794f5
commit a552d1eb91
1 changed files with 4 additions and 2 deletions
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6
sw/src/usb-dev.c
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@ -102,8 +102,9 @@ void usb_setup(struct usb_device *dev, const struct usb_setup_request *setup)
} }
goto send; goto send;
} }
i++;
} }
printf("%s:%d couldn't find descriptor (%d / %d)\n", __FILE__, __LINE__, setup->wIndex, setup->wValue); printf("%s:%d couldn't find descriptor %04x (%d / %d)\n", __FILE__, __LINE__, setup->wValue, setup->wIndex, setup->wValue);
usb_err(dev, 0); usb_err(dev, 0);
return; return;
@ -236,7 +237,8 @@ void usb_setup(struct usb_device *dev, const struct usb_setup_request *setup)
send: send:
if (data && datalen) { if (data && datalen) {
printf("%s:%d sending %d bytes from %08x\n", __FILE__, __LINE__, datalen, data); if (datalen > setup->wLength)
datalen = setup->wLength;
usb_send(dev, 0, data, datalen); usb_send(dev, 0, data, datalen);
} }
else else