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Ignore the first byte of the BLE packets

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The first byte of the BLE packets does no longer contain the size of the
payload. Since BLE supports variable sized packets, we can simply ignore
this byte and obtain the payload size from the BLE packet size.
This commit is contained in:
Jef Driesen 2022-11-01 21:36:31 +01:00
parent db2540485e
commit 755f23fdfa
1 changed files with 6 additions and 3 deletions
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9
src/uwatec_smart.c
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@ -310,6 +310,7 @@ uwatec_smart_usbhid_receive (uwatec_smart_device_t *device, dc_event_progress_t
{
dc_status_t rc = DC_STATUS_SUCCESS;
dc_device_t *abstract = (dc_device_t *) device;
dc_transport_t transport = dc_iostream_get_transport(device->iostream);
unsigned char buf[PACKETSIZE_USBHID_RX];
size_t nbytes = 0;
@ -364,9 +365,11 @@ uwatec_smart_usbhid_receive (uwatec_smart_device_t *device, dc_event_progress_t
*
* It may be just an oddly implemented sequence number. Whatever.
*/
unsigned int len = buf[0];
if (len + 1 > transferred)
len = transferred-1;
unsigned int len = transferred - 1;
if (transport == DC_TRANSPORT_USBHID) {
if (len > buf[0])
len = buf[0];
}
HEXDUMP (abstract->context, DC_LOGLEVEL_DEBUG, "rcv", buf + 1, len);