jct/ledcontroller-3bit
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Basic code formatting
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This commit is contained in:
Jens True
2019-04-01 10:37:42 +02:00
parent 4243b39b1f
commit 98a5539dca
1 changed files with 75 additions and 70 deletions
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145
main.c
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@@ -51,16 +51,19 @@
static struct libusb_device_handle *devh = NULL;
int main(int argc,char** argv)
int
main (int argc, char **argv)
{
int ret;
unsigned char code = 0;
if (argc != 2 )
{
printf("syntax: %s blue | red | green | aqua | purple | yellow | white | off\n",argv[0]);
return -1;
int ret;
unsigned char code = 0;
if (argc != 2)
{
printf
("Syntax: %s blue | red | green | aqua | purple | yellow | white | off\n",
argv[0]);
return -1;
}
}
/*
The device has a RGB LED, which has two states for each "sub-LED",
@@ -81,72 +84,74 @@ int main(int argc,char** argv)
1 1 0 yellow 0x6 (more of a mustard - green color)
1 1 1 white 0x7 (a very blue-ish white)
*/
if ( strcmp(argv[1],"blue") == 0 )
{
code = 1;
}
else if ( strcmp(argv[1],"red") == 0 )
{
code = 2;
}
else if ( strcmp(argv[1],"green") == 0 )
{
code = 3;
}
else if ( strcmp(argv[1],"aqua") == 0 )
{
code = 4;
}
else if ( strcmp(argv[1],"purple") == 0 )
{
code = 5;
}
else if ( strcmp(argv[1],"yellow") == 0 )
{
code = 6;
}
else if ( strcmp(argv[1],"white") == 0 )
{
code = 7;
} else {
printf("invalid color\n");
return -1;
}
if (strcmp (argv[1], "blue") == 0)
{
code = 1;
}
else if (strcmp (argv[1], "red") == 0)
{
code = 2;
}
else if (strcmp (argv[1], "green") == 0)
{
code = 3;
}
else if (strcmp (argv[1], "aqua") == 0)
{
code = 4;
}
else if (strcmp (argv[1], "purple") == 0)
{
code = 5;
}
else if (strcmp (argv[1], "yellow") == 0)
{
code = 6;
}
else if (strcmp (argv[1], "white") == 0)
{
code = 7;
}
else
{
printf ("invalid color\n");
return -1;
}
libusb_init(NULL);
devh = libusb_open_device_with_vid_pid(NULL, VID, PID);
if (devh == NULL )
{
printf("not found\n");
return -1;
}
libusb_init (NULL);
devh = libusb_open_device_with_vid_pid (NULL, VID, PID);
if (devh == NULL)
{
printf ("not found\n");
return -1;
}
if ( libusb_kernel_driver_active(devh,0) )
{
printf("detach from kernel\n");
ret = libusb_detach_kernel_driver(devh,0);
if (ret < 0 )
{
printf("can't detach\n");
return -1;
}
}
if (libusb_kernel_driver_active (devh, 0))
{
printf ("detach from kernel\n");
ret = libusb_detach_kernel_driver (devh, 0);
if (ret < 0)
{
printf ("can't detach\n");
return -1;
}
}
char data[5];
data[0] = code;
data[1] = 0x4;
data[2] = 0x4;
data[3] = 0x4;
data[4] = 0x4;
char data[5];
data[0] = code;
data[1] = 0x4;
data[2] = 0x4;
data[3] = 0x4;
data[4] = 0x4;
int dummy;
libusb_claim_interface(devh,0);
ret = libusb_interrupt_transfer(devh,0x2,data,5,&dummy,0);
if ( ret < 0 )
{
perror("error");
}
int dummy;
libusb_claim_interface (devh, 0);
ret = libusb_interrupt_transfer (devh, 0x2, data, 5, &dummy, 0);
if (ret < 0)
{
perror ("error");
}
return 0;
return 0;
}