Intel OpenBMC Linux kernel source tree (mirror) https://git.radix-linux.su/BMC/Intel-BMC/linux.git/atom?h=dev 2012-05-15T21:27:28+00:00 2012-05-15T21:27:28+00:00 Marcel Holtmann marcel@holtmann.org 2012-05-03T05:12:48+00:00 urn:sha1:f3a138c10b9a5f716d2b773e0ae08401ebd19f80 The SHDLC link layer of HCI based drivers uses CRC-CCITT and thus needs to select that kernel option. Otherwise it ends up with this linking error: net/built-in.o: In function `nfc_shdlc_add_len_crc': net/nfc/hci/shdlc.c:113: undefined reference to `crc_ccitt' Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> 2012-04-12T19:10:35+00:00 Eric Lapuyade eric.lapuyade@intel.com 2012-04-10T17:43:07+00:00 urn:sha1:eb738fe535ae8e44402c372ecc1321eee0552a09 Most NFC HCI chipsets actually use a simplified HDLC link layer to carry HCI payloads. This implementation registers itself as an HCI device on behalf of the NFC driver. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> 2012-04-12T19:10:34+00:00 Eric Lapuyade eric.lapuyade@intel.com 2012-04-10T17:43:06+00:00 urn:sha1:8b8d2e08bf0d50193931afd27482a59376b66b2b This is an implementation of ETSI TS 102 622 specification. Many NFC chipsets use HCI as the host <-> target protocol on top of a serial link like i2c. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>