Currently it is not possible to only poll for passive targets with the pn533 driver. To change this ATR_REQ is only sent when NFC_PROTO_NFC_DEP is explicitly requested in poll_protocols. As most implementations (e.g. neard) poll for all protocols that are reported to be supported by the adapter, this should not have much of an effect for current implementations.
Signed-off-by: Michael Thalmeier <[email protected]> --- drivers/nfc/pn533.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c index bb3d5ea..a85830f 100644 --- a/drivers/nfc/pn533.c +++ b/drivers/nfc/pn533.c @@ -1540,7 +1540,8 @@ static int pn533_start_poll_complete(struct pn533 *dev, struct sk_buff *resp) int rc, tgdata_len; /* Toggle the DEP polling */ - dev->poll_dep = 1; + if (dev->poll_protocols & NFC_PROTO_NFC_DEP_MASK) + dev->poll_dep = 1; nbtg = resp->data[0]; tg = resp->data[1]; @@ -2054,7 +2055,7 @@ static int pn533_send_poll_frame(struct pn533 *dev) dev_dbg(&dev->interface->dev, "%s mod len %d\n", __func__, mod->len); - if (dev->poll_dep) { + if ((dev->poll_protocols & NFC_PROTO_NFC_DEP_MASK) && dev->poll_dep) { dev->poll_dep = 0; return pn533_poll_dep(dev->nfc_dev); } -- 2.5.5
