Re: What is SAM value? "ieee802154 phy0 wpan0: SAM value 0x3 not supported"

[Alexander Aring <alex.aring@gmail.com>]

Hi,

please don't send me tcpdumps from interfaces. Instrument the driver,
which is the lowest level which we have, for dumping the framebuffer at
before willing at xmit function and on receiving. Don't know exactly
the function inside at86rf230 driver, I said that previously.

If the transmitted frame and received frame is different, then I don't
know what's going on there and can't help you. It seems for me that your
spi functionality is broken.

The reason why you should not dump the wpan/lowpan interface is that the
data goes through the layers and I will detect if the raw data which
should be transmitted is correctly received. If not -> something weird
goes wrong. And again, I would not trust the wpan/lowpan dumps because
it will goes through layers which "could maybe" manipulate the raw data.

My consideration was look if the "raw" data is correct, because we don't
do anything which "raw" data. If you send "0xabcd" as frame to some node
and the receiving node receives "0xefgh" then something goes wrong with
the transceiver and I don't know why. So please capture the raw data
with the printk_hex_dump functionality and do a diff afterwards. On
transmit and receiving side.

- Alex