1 # 2 # IrDA protocol configuration 3 # 4 5 menuconfig IRDA 6 depends on NET && !S390 7 tristate "IrDA (infrared) subsystem support" 8 select CRC_CCITT 9 ---help--- 10 Say Y here if you want to build support for the IrDA (TM) protocols. 11 The Infrared Data Associations (tm) specifies standards for wireless 12 infrared communication and is supported by most laptops and PDA's. 13 14 To use Linux support for the IrDA (tm) protocols, you will also need 15 some user-space utilities like irattach. For more information, see 16 the file <file:Documentation/networking/irda.txt>. You also want to 17 read the IR-HOWTO, available at 18 <http://www.tldp.org/docs.html#howto>. 19 20 If you want to exchange bits of data (vCal, vCard) with a PDA, you 21 will need to install some OBEX application, such as OpenObex : 22 <http://sourceforge.net/projects/openobex/> 23 24 To compile this support as a module, choose M here: the module will 25 be called irda. 26 27 comment "IrDA protocols" 28 depends on IRDA 29 30 source "net/irda/irlan/Kconfig" 31 32 source "net/irda/irnet/Kconfig" 33 34 source "net/irda/ircomm/Kconfig" 35 36 config IRDA_ULTRA 37 bool "Ultra (connectionless) protocol" 38 depends on IRDA 39 help 40 Say Y here to support the connectionless Ultra IRDA protocol. 41 Ultra allows to exchange data over IrDA with really simple devices 42 (watch, beacon) without the overhead of the IrDA protocol (no handshaking, 43 no management frames, simple fixed header). 44 Ultra is available as a special socket : socket(AF_IRDA, SOCK_DGRAM, 1); 45 46 comment "IrDA options" 47 depends on IRDA 48 49 config IRDA_CACHE_LAST_LSAP 50 bool "Cache last LSAP" 51 depends on IRDA 52 help 53 Say Y here if you want IrLMP to cache the last LSAP used. This 54 makes sense since most frames will be sent/received on the same 55 connection. Enabling this option will save a hash-lookup per frame. 56 57 If unsure, say Y. 58 59 config IRDA_FAST_RR 60 bool "Fast RRs (low latency)" 61 depends on IRDA 62 ---help--- 63 Say Y here is you want IrLAP to send fast RR (Receive Ready) frames 64 when acting as a primary station. 65 Disabling this option will make latency over IrDA very bad. Enabling 66 this option will make the IrDA stack send more packet than strictly 67 necessary, thus reduce your battery life (but not that much). 68 69 Fast RR will make IrLAP send out a RR frame immediately when 70 receiving a frame if its own transmit queue is currently empty. This 71 will give a lot of speed improvement when receiving much data since 72 the secondary station will not have to wait the max. turn around 73 time (usually 500ms) before it is allowed to transmit the next time. 74 If the transmit queue of the secondary is also empty, the primary will 75 start backing-off before sending another RR frame, waiting longer 76 each time until the back-off reaches the max. turn around time. 77 This back-off increase in controlled via 78 /proc/sys/net/irda/fast_poll_increase 79 80 If unsure, say Y. 81 82 config IRDA_DEBUG 83 bool "Debug information" 84 depends on IRDA 85 help 86 Say Y here if you want the IrDA subsystem to write debug information 87 to your syslog. You can change the debug level in 88 /proc/sys/net/irda/debug . 89 When this option is enabled, the IrDA also perform many extra internal 90 verifications which will usually prevent the kernel to crash in case of 91 bugs. 92 93 If unsure, say Y (since it makes it easier to find the bugs). 94 95 source "drivers/net/irda/Kconfig" 96
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