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Multicast support in AT91 EMAC Ethernet driver
- From: Jürgen Lambrecht <J dot Lambrecht at televic dot com>
- To: ecos-discuss at ecos dot sourceware dot org
- Date: Fri, 13 Jun 2008 11:08:58 +0200
- Subject: [ECOS] Multicast support in AT91 EMAC Ethernet driver
Hello,
we are busy adding multicast support to the AT91 EMAC Ethernet driver.
As code size is often important for eCos users, I was thinking to add an
#ifdef around the multicast code.
The setting is in /io/eth/current/cdl/eth_drivers.cdl:
CYGINT_IO_ETH_MULTICAST.
But that is always used this way: 'implements
CYGINT_IO_ETH_MULTICAST' in the driver cdl (e.g.
/devs/eth/cl/cs8900a/current/cdl/cl_cs8900a_eth_drivers.cdl).
The problem is that you cannot add/remove that option yourself: from
ecos.ecc: '# This value cannot be modified here.'
So once somebody as extended a driver to support multicast, that code
is present in your binary (control() function), even if you don't need it.
That's OK for me. But I don't it's ok for everybody??
Then we could change the cdl option.
Kind regards,
Jürgen
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