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Holger Hans Peter Freyther hfreyther at sysmocom.deOn Mon, Jul 23, 2012 at 10:15:06AM +0200, Alexander Chemeris wrote: > > PS: NOOB question, what is the meaning of USF==0x7? > > This is a special value which in means "free", i.e. it's not allocated > to any mobile if we use dynamic allocation (IIRC). And if we use PRACH > channel instead of RACH, then USF 7 is used to mark places for Access > Bursts. Okay, so next noob question (and applies to the jolly branch) gprs_rlmac_sched.c:gprs_rlcmac_rcv_rts_block(...) { uint8_t usf = 0x7; if (poll_tbf) { } else { nested_for_loop { ... usf = ... break_on_found_item; } } msg->data[0] = (msg->data[0] & 0xf8) | usf; } in the above it is possible that !poll_tbf and usf == 0x7, is this the right behavior in case no TBF could be found? -- - Holger Freyther <hfreyther at sysmocom.de> http://www.sysmocom.de/ ======================================================================= * sysmocom - systems for mobile communications GmbH * Schivelbeiner Str. 5 * 10439 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschaeftsfuehrer / Managing Directors: Holger Freyther, Harald Welte