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authorSamuel Ortiz <sameo@linux.intel.com>2013-09-24 10:40:44 (GMT)
committerSamuel Ortiz <sameo@linux.intel.com>2013-09-25 00:02:44 (GMT)
commitb9c0c678f7267831b73e1d73fb30c9b4658e91ec (patch)
tree88d047d98bce990d62130f6ab6865832baef3a9f /include
parent13292c9a1ed92e535caae6154db1fea7993777ad (diff)
downloadlinux-fsl-qoriq-b9c0c678f7267831b73e1d73fb30c9b4658e91ec.tar.xz
NFC: Document NFC targets sens_res field
SENS_RES has no specific endiannes attached to it, the kernel ABI is the following one: Byte 2 (As described by the NFC Forum Digital spec) is the u16 most significant byte. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'include')
-rw-r--r--include/net/nfc/nfc.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
index c2aee48..5329804 100644
--- a/include/net/nfc/nfc.h
+++ b/include/net/nfc/nfc.h
@@ -85,6 +85,14 @@ struct nfc_ops {
#define NFC_MAX_GT_LEN 48
#define NFC_ATR_RES_GT_OFFSET 15
+/**
+ * struct nfc_target - NFC target descriptiom
+ *
+ * @sens_res: 2 bytes describing the target SENS_RES response, if the target
+ * is a type A one. The %sens_res most significant byte must be byte 2
+ * as described by the NFC Forum digital specification (i.e. the platform
+ * configuration one) while %sens_res least significant byte is byte 1.
+ */
struct nfc_target {
u32 idx;
u32 supported_protocols;