Possible Kernel patch/hack needed, for use of Ambicom BT2000 CF adapter...

[Maksim Yevmenkin]

Martes,

sorry for the delay.

> Thanks for the response.  I am just starting into the C-programming
> stuff.  I have some good books, but I won't be taking my C++ class until
> the fall, so I am just winging it currently.  Are there any good howtos

that's fine. btw for this particular project you would not need c++. 
everything is written in c.

> on what is needed to patch as you have indicated?  I really want to get

i do not think so. i would recommend to get a good unix programming 
book. something like

Advanced Programming in the UNIX Environment, Addison-Wesley, 1992, ISBN 
0-201-56317-7

> into this stuff, however, I am not well versed in programming operating
> systems, yet.  Any hints?  I have downloaded the Architecure
> Manual/Handbook, for FreeBSD, but I was hoping for a no frills
> quick-start, for someone like myself.  I have not found good information
> on what in actually involved in patching the kernel.

again, for this particular project, you probably wont have to patch the 
kernel. i need to change hcseriald(8) (which is a user-space daemon) so 
it would send extra initialization command to the device. since device 
looks like a serial port (modem) all i need to do is to send/receive few 
bytes to/from serial port.

thanks,
max


> Thanks again, and will be waiting for that patch.  
> 
> On Mon, 2005-04-18 at 12:35, Maksim Yevmenkin wrote:
> 
>>Martes,
>>
>>
>>>Thanks for the info.  I appologize for cross-posting, however, I have
>>>been posting this problem on different lists for about a week, and no
>>>responses came back, so I decided to multply my output in the hopes for
>>>a response. 
>>
>>hmmm... i must have missed it :(
>>
>>
>>>Anyhow: 
>>>
>>>When I attempt the rc.bluetooth script, I get the following:
>>>
>>>
>>>>># sudo /etc/rc.bluetooth start sio4
>>>>
>>>>#
>>>>#Could not execute command "reset". Operation timed out
>>
>>"reset" is the very first command in the initialization sequence. since 
>>it has timed out then communication between host and adapter is broken 
>>(for whatever reason).
>>
>>after google'ing a bit i found out that this particular card
>>
>>1. uses 16c950/954 uart, which is a good thing because it has 128 bytes 
>>fifo (compared to 16 bytes in 16c550a). you might want to try puc(4) 
>>driver that might have support for this uart.
>>
>>2. apparently needs extra initialization sequence. that is you need to 
>>send extra vendor specific command to the adapter to setup uart speed.
>>
>>my guess item (2) above is the reason why you got timeout in "reset". 
>>basically i need to prepare a patch for hcseriald(8) and send it to you. 
>>it will take me a few days to do that. since i do not have the card here 
>>i will rely on you to help me with testing.
>>
>>in the mean time you might want to try item (1) above to see if puc(4) 
>>driver works and recognize 16c950/954 uart.
>>
>>if you feel like hacking it yourself, you might want to take a look as 
>>linux bluez hciattach utility (online cvs 
>>http://cvs.sourceforge.net/viewcvs.py/bluez/utils/tools/hciattach.c?rev=1.29&view=markup). 
>>this utility does a similar (to hciseriald(8)) job. if you get it 
>>working please send me the patches and i will review and commit them.
>>
>>
>>>I also find it extremely difficult to get anywhere when things don't work.  Whenever I post to the appropriate list,
>>>I get nothing.  
>>
>>again, i must have missed it. i usually read bluetooth@ and mobile@ and 
>>look for bluetooth related questions. please use bluetooth@ list for all 
>>your bluetooth related questions.
>>
>>
>>>In fact, your very needed response, only came in spite of my posts to Bluetooth, and Stable, where I would hope 
>>>I would be able to find such informed answers. 
>>>
>>>Any tips on specific posts, such as mine?  It is like people only want to talk about hacking stuff
>>>that works already, and don't budge, when something needs repair, or explanation.
>>
>>it is better to post bluetooth related questions in bluetooth@ mailing list.
>>
>>thanks,
>>max
>>
> 
>