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nfc: hci: Add comment to explain NFC_HCI_MAX_PIPES

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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>
This commit is contained in:
Christophe Ricard 2015-03-31 08:02:18 +02:00 committed by Samuel Ortiz
parent a8f686ec10
commit 0b040964a0
1 changed files with 4 additions and 0 deletions
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4
include/net/nfc/hci.h
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@ -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;