> That's clear enough. > > ISO IN 1007 bytes -> 793 us > INT IN 32 bytes -> 35 us > ------ > 825 us > > The additional requirements are: > > ISO IN 48 bytes -> 45 us -> 870 us total > ISO IN 192 bytes -> 158 us -> 983 us total Or how about both, 1028 out of 1000 us total ;) T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 8 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=1130 ProdID=f211 Rev= 2.04 S: Product=USB AUDIO C:* #Ifs= 5 Cfg#= 1 Atr=80 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio I: If#= 1 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio I:* If#= 1 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=01(O) Atr=09(Isoc) MxPS= 192 Ivl=1ms I: If#= 2 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio I:* If#= 2 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=83(I) Atr=09(Isoc) MxPS= 48 Ivl=1ms I:* If#= 3 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid E: Ad=82(I) Atr=03(Int.) MxPS= 8 Ivl=10ms I:* If#= 4 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid E: Ad=84(I) Atr=03(Int.) MxPS= 8 Ivl=10ms T: Bus=01 Lev=01 Prnt=01 Port=02 Cnt=02 Dev#= 7 Spd=12 MxCh= 0 D: Ver= 1.00 Cls=02(comm.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1110 ProdID=9031 Rev=20.0b S: Product=ADSL-USB Modem S: SerialNumber=00604C8D86AA C:* #Ifs= 3 Cfg#= 1 Atr=80 MxPwr=400mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=07 Prot=00 Driver=ueagle-atm E: Ad=84(I) Atr=03(Int.) MxPS= 32 Ivl=1ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=ueagle-atm E: Ad=04(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I: If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=ueagle-atm E: Ad=04(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=03(Int.) MxPS= 64 Ivl=1ms I: If#= 2 Alt= 0 #EPs= 1 Cls=0a(data ) Sub=00 Prot=00 Driver=ueagle-atm E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms I: If#= 2 Alt= 1 #EPs= 1 Cls=0a(data ) Sub=00 Prot=00 Driver=ueagle-atm E: Ad=88(I) Atr=01(Isoc) MxPS= 159 Ivl=1ms I: If#= 2 Alt= 2 #EPs= 1 Cls=0a(data ) Sub=00 Prot=00 Driver=ueagle-atm E: Ad=88(I) Atr=01(Isoc) MxPS= 265 Ivl=1ms I: If#= 2 Alt= 3 #EPs= 1 Cls=0a(data ) Sub=00 Prot=00 Driver=ueagle-atm E: Ad=88(I) Atr=01(Isoc) MxPS= 424 Ivl=1ms I: If#= 2 Alt= 4 #EPs= 1 Cls=0a(data ) Sub=00 Prot=00 Driver=ueagle-atm E: Ad=88(I) Atr=01(Isoc) MxPS= 530 Ivl=1ms I: If#= 2 Alt= 5 #EPs= 1 Cls=0a(data ) Sub=00 Prot=00 Driver=ueagle-atm E: Ad=88(I) Atr=01(Isoc) MxPS= 636 Ivl=1ms I: If#= 2 Alt= 6 #EPs= 1 Cls=0a(data ) Sub=00 Prot=00 Driver=ueagle-atm E: Ad=88(I) Atr=01(Isoc) MxPS= 795 Ivl=1ms I: If#= 2 Alt= 7 #EPs= 1 Cls=0a(data ) Sub=00 Prot=00 Driver=ueagle-atm E: Ad=88(I) Atr=01(Isoc) MxPS= 901 Ivl=1ms I:* If#= 2 Alt= 8 #EPs= 1 Cls=0a(data ) Sub=00 Prot=00 Driver=ueagle-atm E: Ad=88(I) Atr=01(Isoc) MxPS=1007 Ivl=1ms T: Bus=01 Lev=01 Prnt=01 Port=04 Cnt=03 Dev#= 2 Spd=1.5 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0461 ProdID=4ebc Rev= 1.04 S: Manufacturer=NOVATEK S: Product=Classic USB Keyboard C:* #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr=100mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=10ms I:* If#= 1 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid E: Ad=82(I) Atr=03(Int.) MxPS= 8 Ivl=10ms size = 32 0 [354]: ed8/ffff8800df655050 (ls dev2 ep1in-int qlen 1 max 8 00083082) ed1/ffff8800df655140 (fs dev7 ep4in-int qlen 1 max 32 00201207) ed1/ffff8800df6551e0 (fs dev7 ep8in-iso qlen 12 max 1007 03ef9407) ed1/ffff8800df655370 (fs dev8 ep1out-iso qlen 13 max 192 00c08888) ed1/ffff8800df6553c0 (fs dev8 ep3in-iso qlen 12 max 48 00309188) 1 [354]: ed8/ffff8800df6550a0 (ls dev2 ep2in-int qlen 1 max 8 00083102) ed1/ffff8800df655140 2 [253]: ed8/ffff8800df655280 (fs dev8 ep2in-int qlen 1 max 8 00081108) ed1/ffff8800df655140 3 [253]: ed8/ffff8800df655230 (fs dev8 ep4in-int qlen 1 max 8 00081208) ed1/ffff8800df655140 4 [237]: ed1/ffff8800df655140 5 [237]: ed1/ffff8800df655140 6 [237]: ed1/ffff8800df655140 7 [237]: ed1/ffff8800df655140 8 [354]: ed8/ffff8800df655050 9 [354]: ed8/ffff8800df6550a0 10 [253]: ed8/ffff8800df655280 11 [253]: ed8/ffff8800df655230 12 [237]: ed1/ffff8800df655140 13 [237]: ed1/ffff8800df655140 14 [237]: ed1/ffff8800df655140 15 [237]: ed1/ffff8800df655140 16 [354]: ed8/ffff8800df655050 17 [354]: ed8/ffff8800df6550a0 18 [253]: ed8/ffff8800df655280 19 [253]: ed8/ffff8800df655230 20 [237]: ed1/ffff8800df655140 21 [237]: ed1/ffff8800df655140 22 [237]: ed1/ffff8800df655140 23 [237]: ed1/ffff8800df655140 24 [354]: ed8/ffff8800df655050 25 [354]: ed8/ffff8800df6550a0 26 [253]: ed8/ffff8800df655280 27 [253]: ed8/ffff8800df655230 28 [237]: ed1/ffff8800df655140 29 [237]: ed1/ffff8800df655140 30 [237]: ed1/ffff8800df655140 31 [237]: ed1/ffff8800df655140 Audio playback and keyboard work perfectly, audio recording produces *some* output (didn't check what) and the network seems good enough to fetch small website with curl every second, although I feel like pppd takes unusually long to start. This is 3.14.25 and I'm almost sure *every* current kernel allows that. I'm almost sure your fix eleminates this issue as well, so I wonder if maybe it shouldn't be sent to all LTS releases, if somebody can confirm that this looks like a real problem and not just me being clueless ;) > periodic_link() gets called from only one place: ed_schedule(). > Did you remember to check ed_schedule()'s other call site, in > finish_unlinks()? Maybe that's where the "dark magic" is. Yeah, I goofed out here. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html