Is C worth the effort? Post: 302905437

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Top Forums Programming Is C worth the effort? Post 302905437 by wisecracker on Wednesday 11th of June 2014 01:52:56 PM

06-11-2014

Registered User

Hi dryPants...

Quote:

Do you have some other good advices for me?

Yes. Python is a very strict language and has libraries for just about anything that anyone in the coding industry is likely to encounter.

Before deciding to hammer any hardware, (and yes I have done much in this area), experiment coding for something less likely to cause you serious headaches.

Once you feel confident try experimenting with an Arduino, USB type, as an example.

In *NIX flavours it is easy to R/W from/to even with shell scripting. I have uploaded much code to do this mainly in Python for multi-platform use, (including a serial port stock AMIGA A1200 with HW mods to the USB Arduino), I love "banging the metal"...

I personally love assembly but........
......don't expect to get to Ring 0 directly in current OSes you WILL have serious headaches finding that you can't. The days of MS-DOS where BIOS and other assembly access and calls are long gone.

Study things like ISA, PCI bus design and limitations as examples then progress to current technology. I studied the PCI slot for months only to realise my limitations at home built hardware was way beyond any beginners scope.

Hope this helps...

wisecracker

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LEARN ABOUT OPENSOLARIS

usb_get_addr

usb_get_addr(9F)					   Kernel Functions for Drivers 					  usb_get_addr(9F)

NAME

       usb_get_addr - Retrieve device USB address

SYNOPSIS

       #include <sys/usb/usba.h>

       int usb_get_addr(dev_info_t *dip);

INTERFACE LEVEL

       Solaris DDI specific (Solaris DDI)

PARAMETERS

       dip    Pointer to the device's dev_info structure.

DESCRIPTION

       The  usb_get_addr() function returns the current USB bus address for debugging  purposes. The returned address is unique for a specific USB
       bus, and may be replicated if multiple host controller instances are present on the system.

RETURN VALUES

       On success: USB device address.

       On failure: returns 0. Fails if dip is NULL.

CONTEXT

       May be called from user, kernel or interrupt context.

EXAMPLES

	 int usb_addr;

	 usb_addr = usb_get_addr(dip);

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Architecture		     |PCI-based systems 	   |
       +-----------------------------+-----------------------------+
       |Interface stability	     |Committed 		   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWusb			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5), usb_pipe_open(9F)

SunOS 5.11							    Feb 9 2004							  usb_get_addr(9F)