[ECOS] Splitting driver code between I/O layer and driver layer

["Samie Hassan Ghauri" <samiehg at hotmail dot com>]

I am developing device driver for an LCD device. I have implemented the I/O 
APIs (eg write, read etc) in a separate file and stored in packages/io/lcd. 
The device specific code is stored in another file in devs directory. I have 
included the devtab_entry () in the the file that contains device specific 
code which contains the pointer to I/O functions. But I try to build the 
library, it gives the following errors:

/ecos-c/ecos/packages/devs/lcd/leon/current/src/lcd_leon.c:108: 
`lcdio_devio' undeclared here (not in a function)
make: Leaving directory `/ecos-c/project/lcd/lcd_build'
/ecos-c/ecos/packages/devs/lcd/leon/current/src/lcd_leon.c:108: initializer 
element is not constant
/ecos-c/ecos/packages/devs/lcd/leon/current/src/lcd_leon.c:108: (near 
initialization for `lcdio_label.handlers')
/ecos-c/ecos/packages/devs/lcd/leon/current/src/lcd_leon.c:109: `lcdio_init' 
undeclared here (not in a function)
/ecos-c/ecos/packages/devs/lcd/leon/current/src/lcd_leon.c:109: initializer 
element is not constant
/ecos-c/ecos/packages/devs/lcd/leon/current/src/lcd_leon.c:109: (near 
initialization for `lcdio_label.init')
/ecos-c/ecos/packages/devs/lcd/leon/current/src/lcd_leon.c:115: warning: 
`lcdio_init' defined but not used

It is quite strange as the other file (lcdio.c) in which the I/O API were 
implemented DOES get compiled, but somehow the code in hardware specific 
file (lcd_leon) is not able to detect lcdio_devio. Any comments/

Samie

_________________________________________________________________
Help STOP SPAM with the new MSN 8 and get 2 months FREE*  
http://join.msn.com/?page=features/junkmail


--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss