Re: PL2303 driver guide ?

>trungnl wrote:
>> Has anybody worked with PL2303 ? Please give me some help !
>
>When I wrote a driver for this chip, I gleaned the apparently
>reverse-engineered interface information from the appropriate
>Linux device driver.
>


>When I wrote a driver for this chip, I gleaned the apparently
>reverse-engineered interface information from the appropriate
>Linux device driver.
>

Hi Michael,

Actually I am writting the PL2303 driver base on some reverse-engineered
information retrieved by monitoring the data transfer process between a
PL2303-based USB-RS232 cable and PC. Now I can enumerate the PL2303, set
the COM settings like baudrate, stop bits, parity... I can send as many
data as I like from the embedded USB host to PL2303 as well. But there is
still a big problem because the host cannot get data from PL2303.
Now I need some more information on:
1. How to be notified when there's some data in the Receive buffer of
PL2303.
2. How to know the amount of data in the Receive buffer of PL2303.

Best,
N.L.Trung

.

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