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usb-standard: fix alignment assumption for Cortex-M0 platforms

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Sebastian Holzapfel 2018-02-11 09:39:55 +11:00 committed by Karl Palsson
parent d79674db09
commit f871e539ed
1 changed files with 3 additions and 2 deletions
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5
lib/usb/usb_standard.c
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@ -129,8 +129,9 @@ static uint16_t build_config_descriptor(usbd_device *usbd_dev,
}
}
/* Fill in wTotalLength. */
*(uint16_t *)(tmpbuf + 2) = totallen;
/* Fill in wTotalLength.
* Note that tmpbuf is sometimes not halfword-aligned */
memcpy((tmpbuf + 2), &totallen, sizeof(uint16_t));
return total;
}