[BRLTTY] eurobraille driver: bug in serial stuff?

[Dave Mielke]

[quoted lines by Yannick PLASSIARD on 2010/02/25 at 15:19 +0100]

>Due to the fact that my code calls serialReadData() each time it needs 
>some data and then reassembles itself a packet. In this situation would 
>it be "correct" to tell serialReadData() not to wait for any 
>initial/subsequent timeouts ? I investigated and it seems brltty will 
>not burn some extra CPU/memory usage and it suppesses the log warning.

you should really only read one byte at a time. You should wait for that byte 
if it's not the first byte of a packet but you should not wait for it if it is 
the first byte of a packet. You can set the wait timeout fairly high when 
waiting for a non-first byte since you fully expect it to arrive so there's no 
point in setting the itmeout too low and risking missing it.

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