I tried to follow the example in the reference manual shown below:
Instantiating a bit-banged I2C bus requires the following:
#include <cyg/io/i2c.h>
static cyg_bool
hal_alaia_i2c_bitbang(cyg_i2c_bus* bus, cyg_i2c_bitbang_op op)
{
cyg_bool result = 0;
switch(op) {
...
}
return result;
}
CYG_I2C_BITBANG_BUS(&hal_alaia_i2c_bus, &hal_alaia_i2c_bitbang);
This gives a structure hal_alaia_i2c_bus which can be used when defining the
cyg_i2c_device structures.
I get a syntax error unless I remove the "&" before
hal_alaia_i2c_bus. If this macro is declaring and allocating
(is that what "gives" means in this context?) a structure named
"hal_alaia_i2c_bus", the "&" doesn't really make sense.
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