On Sunday 27 August 2006 11:58 pm, Peter.Chen wrote:
> Kernel Version is 2.6.15
>
> At ep0_irq routine,the line 1543:
>
> if(irq_src & UDC_EP0_RX){
>
> ................
>
>
> L1543:if(!req || (stat=read_fifo(eq0,req))<0)
>
> But i find the return value of read_fifo only would be 0 and 1.
> then the latter condition is always wrong
Documentation for that function says negative return would indicate
an error ... but at some point it seems the error returns went away.
So it's not "wrong", although maybe that particular bit of code
could be improved on.
- Dave
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