Re: Request for DLT_ number assignment

[Alexey Neyman <avn () pigeonpoint com>]

Guy,

On 29 November 2007 Guy Harris wrote:
> > The format of the capture is a 5-byte pseudo header followed by the
> > actual I2C data. The MS bit of 1st byte of pseudo-header indicates
> > whether the packet contains data or is an event detected on the I2C
> > controller. The remaining 7 bits contain the minor number of the
> > I2C device that generated the packet. The next 4 bytes contain
> > either message flags, or controller status bits, as defined in
> > <linux/i2c.h> and <linux/i2c-dev.h> headers.
>
> So are those 4 bytes Linux-specific, or are they likely to be used if
> a different OS were to support capturing on IPMB?  If they're
> Linux-specific, DLT_I2C_LINUX might be a better name.

They bit values are not specific themselves (e.g. status bits 
include "Controller lost attachment to bus", "Controller had 
promiscuous mode set/cleared", etc) - most likely, these bits will be 
available on different OS, too. However, the definitions of these 
status bits match those in Linux.

DLT_I2C_LINUX is perfectly fine, too.

Best regards,
Alexey.
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