diff options
Diffstat (limited to 'drivers/sensors/adns5050.c')
-rw-r--r-- | drivers/sensors/adns5050.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/sensors/adns5050.c b/drivers/sensors/adns5050.c index 1768c9f3b4..ac4c95b0c2 100644 --- a/drivers/sensors/adns5050.c +++ b/drivers/sensors/adns5050.c @@ -55,7 +55,7 @@ const pointing_device_driver_t adns5050_pointing_device_driver = { static bool powered_down = false; -void adns5050_init(void) { +bool adns5050_init(void) { // Initialize the ADNS serial pins. gpio_set_pin_output(ADNS5050_SCLK_PIN); gpio_set_pin_output(ADNS5050_SDIO_PIN); @@ -75,6 +75,8 @@ void adns5050_init(void) { // gets the adns ready for write commands // (for example, setting the dpi). adns5050_read_burst(); + + return adns5050_check_signature(); } // Perform a synchronization with the ADNS. @@ -220,7 +222,7 @@ uint16_t adns5050_get_cpi(void) { return (uint16_t)((cpival & 0b10000) * 125); } -bool adns5050_check_signature(void) { +bool __attribute__((weak)) adns5050_check_signature(void) { uint8_t pid = adns5050_read_reg(REG_PRODUCT_ID); uint8_t rid = adns5050_read_reg(REG_REVISION_ID); uint8_t pid2 = adns5050_read_reg(REG_PRODUCT_ID2); |