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From: Ayush Singh <ayushdevel1325@gmail.com>
To: kernelnewbies@kernelnewbies.org
Cc: khc@pm.waw.pl
Subject: Re: Using net/wan/hdlc with serdev
Date: Fri, 11 Aug 2023 00:40:50 +0530	[thread overview]
Message-ID: <3e150f46-d3c8-ea5b-0f84-33cdab963dbf@gmail.com> (raw)
In-Reply-To: <776435cc-1314-22c7-4ff9-88078496b11a@gmail.com>


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So after some more looking around in the code, I think the workflow is 
quite a bit different than what I thought in the previous mail. I think 
I am supposed to allocate hdlc device using `alloc_hdlcdev` in the 
`serdev->probe` and then implementing `hdlc->xmit` to send data over UART.

But well, I am not sure how to create an HDLC frame? Is there a helper 
that creates HDLC frame skbuff for me? Or maybe the hdlc implementation 
is simply not designed to be used for Asynchronous framing [1]. It would 
be great if someone could explain how to use this HDLC module or point 
to some resource I might have missed.


Ayush Singh


[1]: 
https://en.wikipedia.org/wiki/High-Level_Data_Link_Control#Asynchronous_framing

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  reply	other threads:[~2023-08-10 19:13 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-03 15:24 Using net/wan/hdlc with serdev Ayush Singh
2023-08-10 19:10 ` Ayush Singh [this message]
2023-08-11  6:48   ` Bjørn Mork

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