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27Bstroke6
Joined: 07 Jul 2005
Posts: 23
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 Posted: Mon Nov 28, 2005 5:29 pm Post subject: Serial port (remote) access user or kernel mode? |
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The subject pretty much says it all. Is it possible to access the serial (remote control) I/O from a user mode program (e.g. firmware 2.0) or only from a kernel mode program (such as those running in 1.5 and below).
Thanks. |
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Shine
Joined: 03 Dec 2004
Posts: 728
Location: Germany
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| Posted: Mon Nov 28, 2005 8:04 pm Post subject: Re: Serial port (remote) access user or kernel mode? |
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| 27Bstroke6 wrote: | The subject pretty much says it all. Is it possible to access the serial (remote control) I/O from a user mode program (e.g. firmware 2.0) or only from a kernel mode program (such as those running in 1.5 and below).
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You need a kernel mode program to install the driver (see Lua Player for an example), but the rest of the program can run in a user mode thread. This means currently it doesn't work with firmware 2.00. |
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Fanjita
Joined: 28 Sep 2005
Posts: 217
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| Posted: Mon Nov 28, 2005 11:14 pm Post subject: |
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Actually you might like to try running a serial-port sample on the v2.0 wi-fi demo loader. I have a feeling that the serial-port drivers are loaded by the VSH process, in which case the loader should just make them available.
If you try running a serial app, and it doesn't complain about any unrecognised NIDs, then it should just work on 2.0.
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Shine
Joined: 03 Dec 2004
Posts: 728
Location: Germany
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| Posted: Mon Nov 28, 2005 11:23 pm Post subject: |
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| Fanjita wrote: | | Actually you might like to try running a serial-port sample on the v2.0 wi-fi demo loader. I have a feeling that the serial-port drivers are loaded by the VSH process, in which case the loader should just make them available. |
I don't think that this works, because at least Lua Player registers its own device driver :-) |
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TyRaNiD
Joined: 18 Jan 2004
Posts: 918
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| Posted: Tue Nov 29, 2005 3:24 am Post subject: |
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| You cannot access the SIO for reading/writing characters from user mode at all, although you can access the rm driver, but I am guessing that isn't what you want to do. |
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Fanjita
Joined: 28 Sep 2005
Posts: 217
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| Posted: Tue Nov 29, 2005 10:06 am Post subject: |
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Ah of course, that makes sense. It's a shame though :(
_________________
Got a v2.0-v2.80 firmware PSP? Download the eLoader here to run homebrew on it!
The PSP Homebrew Database needs you! |
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