nly if you need to!</p>
<p>ATTENTION: a driver should <em>NOT</em> rely on getting single pbufs but check TX pbufs for being in one piece. If not, <a class="el" href="group__pbuf.html#gafdb04fb0f37f0422fd44ec0fcec8ebd0">pbuf_clone</a> can be used to get a single pbuf: if (p-&gt;next != NULL) { struct pbuf *q = pbuf_clone(PBUF_RAW, PBUF_RAM, p); if (q == NULL) { return ERR_MEM; } p = q; ATTENTION: do NOT free the old 'p' as the ref belongs to the caller! } </p>

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