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authorChristophe Ricard <christophe.ricard@gmail.com>2015-03-31 08:02:18 +0200
committerSamuel Ortiz <sameo@linux.intel.com>2015-04-06 00:18:20 +0200
commit0b040964a01ccfd880207ddc498e55e6c990a5d5 (patch)
tree10a2d2a2554211343a3a6c4a4d5616c0e41ca707 /include/net/nfc
parenta8f686ec1041bd704748a2d919cea9652e8e943e (diff)
downloadlinux-0b040964a01ccfd880207ddc498e55e6c990a5d5.tar.bz2
nfc: hci: Add comment to explain NFC_HCI_MAX_PIPES
According to specification etsi 102 622 chapter 4.4 pipes identifier is 7 bits long giving a 127 possible pipes value. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'include/net/nfc')
-rw-r--r--include/net/nfc/hci.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/net/nfc/hci.h b/include/net/nfc/hci.h
index ab672b537dd4..020a814bc8ed 100644
--- a/include/net/nfc/hci.h
+++ b/include/net/nfc/hci.h
@@ -83,6 +83,10 @@ struct nfc_hci_pipe {
};
#define NFC_HCI_MAX_CUSTOM_GATES 50
+/*
+ * According to specification 102 622 chapter 4.4 Pipes,
+ * the pipe identifier is 7 bits long.
+ */
#define NFC_HCI_MAX_PIPES 127
struct nfc_hci_init_data {
u8 gate_count;