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Re-enabled claim

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If there are alternative interfaces, claim interface 0. Otherwise skip this step.
This commit is contained in:
jpwidera 2019-09-05 22:32:03 +02:00
parent a77a2a8497
commit 6e035c33f3
1 changed files with 11 additions and 0 deletions
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11
libnfc/drivers/acr122_usb.c
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@ -427,6 +427,17 @@ acr122_usb_open(const nfc_context *context, const nfc_connstring connstring)
goto free_mem;
}
// Check if there are more than 0 alternative interfaces and claim the first one
if (dev->config->interface->altsetting->bAlternateSetting > 0) {
res = usb_set_altinterface(data.pudh, 0);
if (res < 0) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Unable to set alternate setting on USB interface (%s)", _usb_strerror(res));
usb_close(data.pudh);
// we failed to use the specified device
goto free_mem;
}
}
// Allocate memory for the device info and specification, fill it and return the info
pnd = nfc_device_new(context, connstring);
if (!pnd) {