diff options
Diffstat (limited to 'libk8055/libk8055.c')
| -rw-r--r-- | libk8055/libk8055.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/libk8055/libk8055.c b/libk8055/libk8055.c index 85ee4a3..a73312d 100644 --- a/libk8055/libk8055.c +++ b/libk8055/libk8055.c @@ -210,6 +210,7 @@ char* k8055_version( void ) { } int k8055_open_device( struct k8055_dev* dev, int board_address ) { + if(dev->dev_no != 0 ) return K8055_ERROR; int ipid = K8055_IPID + board_address; libusb_device** list; libusb_device* found = NULL; @@ -237,7 +238,6 @@ int k8055_open_device( struct k8055_dev* dev, int board_address ) { if( debug ) fprintf( stderr, "No Velleman device found.\n" ); return K8055_ERROR; } - dev->dev_no = 0; dev->usb_handle = NULL; if( libusb_open( found , &dev->usb_handle )!=0 ) { if( debug ) fprintf( stderr,"usb_open failure\n" ); @@ -431,11 +431,11 @@ int k8055_read_all_values( struct k8055_dev* dev, int* data1, int* data2, int* d return 0; } -int k8055_set_all_values( struct k8055_dev* dev, int digital_data, int ad_data1, int ad_data2 ) { +int k8055_set_all_values( struct k8055_dev* dev, int d_data, int a_data1, int a_data2 ) { dev->data_out[CMD_OFFSET] = CMD_SET_ANALOG_DIGITAL; - dev->data_out[DIGITAL_OUT_OFFSET] = ( unsigned char )digital_data; - dev->data_out[ANALOG_1_OFFSET] = ( unsigned char )ad_data1; - dev->data_out[ANALOG_2_OFFSET] = ( unsigned char )ad_data2; + dev->data_out[DIGITAL_OUT_OFFSET] = ( unsigned char )d_data; + dev->data_out[ANALOG_1_OFFSET] = ( unsigned char )a_data1; + dev->data_out[ANALOG_2_OFFSET] = ( unsigned char )a_data2; return k8055_write( dev ); } |