diff options
Diffstat (limited to 'libk8055/libk8055.c')
| -rw-r--r-- | libk8055/libk8055.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libk8055/libk8055.c b/libk8055/libk8055.c index 296f9cb..ad714ab 100644 --- a/libk8055/libk8055.c +++ b/libk8055/libk8055.c @@ -88,6 +88,8 @@ #define STR_BUFF 256 #define PACKET_LEN 8 +#define READ_RETRY 3 +#define WRITE_RETRY 3 #define K8055_IPID 0x5500 #define VELLEMAN_VENDOR_ID 0x10cf @@ -153,7 +155,7 @@ static int ReadK8055Data(void) if (curr_dev->DevNo == 0) return K8055_ERROR; - for(i=0; i < 3; i++) + for(i=0; i < READ_RETRY; i++) { read_status = usb_interrupt_read(curr_dev->device_handle, USB_INP_EP, (char *)curr_dev->data_in, PACKET_LEN, USB_TIMEOUT); if ((read_status == PACKET_LEN) && (curr_dev->data_in[1] == curr_dev->DevNo )) return 0; @@ -171,7 +173,7 @@ static int WriteK8055Data(unsigned char cmd) if (curr_dev->DevNo == 0) return K8055_ERROR; curr_dev->data_out[0] = cmd; - for(i=0; i < 3; i++) + for(i=0; i < WRITE_RETRY; i++) { write_status = usb_interrupt_write(curr_dev->device_handle, USB_OUT_EP, (char *)curr_dev->data_out, PACKET_LEN, USB_TIMEOUT); if (write_status == PACKET_LEN) return 0; |