[ECOS] Re: How to write usb device drivers in eCos?

[David Brennan <eCos at brennanhome dot com>]

I'm sure you mis-addressed this. I have a grand total of zero knowledge 
of writing a USB master. I'm not sure if it is currently in the ecos 
repository. I know for the longest time it was slave only. If you are 
just doing it for academic purposes, check and see how Linux does it.

Halima Zahra wrote:
> Hi!
> I am a university student and currently working on an academic project 
> of mine i.e.,
> "Writing USB Device Driver in eCos"
> ** 
> I ve already accomplished writing the drivers for PCI-DIO96 and 
> PCI-607IE of National Instruments and now I am aiming to write the 
> driver for PCI devices but I dont know how to start with?
>  
> When writing PCI device drivers I used the following function for 
> scanning PCI bus:
>  
> *cyg_pci_find_next (CYG_PCI_NULL_DEVID, &devid);*
> ** 
> Then I extracted information about the device using function:
>  
> *cyg_pci_get_device_info (devid, &dev_info);*
> ** 
> Now I want to write usb device drive but don't know how to scan usb 
> port and draw the
> relevant device information.
>  
> If any such built in function is available in eCos then kindly inform 
> me about it
> and guide me that how can I start with writing the usb driver.
>  
> Moreover there are sample codes for testing pci_device i.e., pci1.c 
> and pci2.c
> Are any such saple codes available in case of usb
>
> Many thanks indeed
>
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>
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