diff options
Diffstat (limited to 'examples/host/cdc_msc_hid/src/hid_app.c')
| -rw-r--r-- | examples/host/cdc_msc_hid/src/hid_app.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/examples/host/cdc_msc_hid/src/hid_app.c b/examples/host/cdc_msc_hid/src/hid_app.c index 420600f9a..11437c2b4 100644 --- a/examples/host/cdc_msc_hid/src/hid_app.c +++ b/examples/host/cdc_msc_hid/src/hid_app.c @@ -61,6 +61,8 @@ void hid_app_task(void) // Invoked when device with hid interface is mounted // Report descriptor is also available for use. tuh_hid_parse_report_descriptor() // can be used to parse common/simple enough descriptor. +// Note: if report descriptor length > CFG_TUH_ENUMERATION_BUFSIZE, it will be skipped +// therefore report_desc = NULL, desc_len = 0 void tuh_hid_mount_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* desc_report, uint16_t desc_len) { printf("HID device address = %d, instance = %d is mounted\r\n", dev_addr, instance); @@ -78,6 +80,13 @@ void tuh_hid_mount_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* desc_re hid_info[instance].report_count = tuh_hid_parse_report_descriptor(hid_info[instance].report_info, MAX_REPORT, desc_report, desc_len); printf("HID has %u reports \r\n", hid_info[instance].report_count); } + + // request to receive report + // tuh_hid_report_received_cb() will be invoked when report is available + if ( !tuh_hid_receive_report(dev_addr, instance) ) + { + printf("Error: cannot request to receive report\r\n"); + } } // Invoked when device with hid interface is un-mounted @@ -108,6 +117,12 @@ void tuh_hid_report_received_cb(uint8_t dev_addr, uint8_t instance, uint8_t cons process_generic_report(dev_addr, instance, report, len); break; } + + // continue to request to receive report + if ( !tuh_hid_receive_report(dev_addr, instance) ) + { + printf("Error: cannot request to receive report\r\n"); + } } //--------------------------------------------------------------------+ |