Hi Ramon,
rflores wrote:
[snip]
The code in the application side is:
/int fd;/
/char buf[80];/
/fd = open (“/dev/swspi”,”rw”);/
^^^^
Not an appropriate argument type for this field. The flags field
of open() is an int. Read the "open" manual page for details.
Regards
Greg
/if (fd == -1){/
/ printf(“\nUnable to open device\n”);/
/ return (-1);/
/}/
/printf(“\nSpi device descriptor = %d\n”,fd);/
/strcpy(buf,”\nSWPI write function\n”);/
/printf(“write return = %d”,write(fd,buf,sizeof(buf)));/
/ /
And the execution is:
Sash command shell (version 1.1.1)
/>
/>
/> llaccess test
SWSPI: Open
Spi device descriptor = 3
write return = -1
SWSPI: Close
/>
Where is the problem? Why doesn’t the kernel call to spi_write when the
application invokes the write function?
Thanks in advance
Ramón Flores
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