sndiod channel duplication doesn't work

From: Peter Piwowarski <peterjpiwowarski_at_gmail.com>
Date: Fri, 3 Jan 2020 23:59:06 -0500
>Synopsis:      sndiod no longer does channel duplication as of src/usr.bin/sndiod/dev.c:1.61
>Category:      user
>Environment:
        System      : OpenBSD 6.6
        Details     : OpenBSD 6.6-current (GENERIC.MP) #0: Thu Jan  2 22:06:44 EST 2020 peter_at_shoebox-kvm-openbsd-current.foo:/usr/src/sys/arch/amd64/compile/GENERIC.MP

        Architecture: OpenBSD.amd64
        Machine     : amd64
>Description:
        sndiod(8) describes the -j option, which when set causes
	streams to have their channels duplicated or joined as needed
	to match the (sub)device's channel count; for example, a mono
	stream has the single channel duplicated in each channel of a
	stereo device. As of revision 1.61 of src/usr.bin/sndiod/dev.c
	this no longer appears to be working; no duplication seems to
	be done. This revision replaces the following logic
	(paraphrased, showing the expansion/duplication case only):

	dev_nch = s->opt->pmax - s->opt->pmin + 1;
	/* ~snip~ */
	if (dev_nch > s->mix.nch)	 
		s->mix.expand = dev_nch / s->mix.nch;

	with this:

	if (s->mix.cmap.nch > s->mix.nch)
		s->mix.expand = s->mix.cmap.nch / s->mix.nch;

	I believe the problem occurs because both s->mix.cmap.nch and
	s->mix.nch vary with the input stream's channel count.

>How-To-Repeat:
	Playing any mono audio stream with the default sndiod
	configuration (assuming a stereo device) should demonstrate the
	issue; an example follows:

	# Prerequisite: audio device with >=2 channels (headphones help)

        # Start sndiod (-j on and -c 0:1 are defaults; greater channel
	# counts still exhibit the problem for me):
	
	$ sndiod -ddd -j on -c 0:1

	# In another shell, attempt to play a mono stream:

	$ aucat -c 0:0 -i /dev/random

	# The result should be white noise in both channels, but white
	# noise is only heard in the left channel for me.
>Fix:
	Reverting revision 1.61 of src/usr.bin/sndiod/dev.c corrects
	the problem for me. I do not fully understand the reasoning or
	the intended behavior; the following is a rough and wild stab at
	correcting the problem while implementing what I believe the
	commit message describes:

Index: dev.c
===================================================================
RCS file: /cvs/src/usr.bin/sndiod/dev.c,v
retrieving revision 1.62
diff -u -p -r1.62 dev.c
--- dev.c	21 Sep 2019 04:42:46 -0000	1.62
+++ dev.c	4 Jan 2020 01:01:20 -0000
_at_@ -1501,9 +1501,14 @@ dev_mmcloc(struct dev *d, unsigned int o
 void
 slot_initconv(struct slot *s)
 {
+	unsigned int target_nch;
 	struct dev *d = s->dev;
 
 	if (s->mode & MODE_PLAY) {
+		target_nch = d->pchan < (s->opt->pmax - s->opt->pmin + 1)
+		    ? d->pchan
+		    : (s->opt->pmax - s->opt->pmin + 1);
+
 		cmap_init(&s->mix.cmap,
 		    s->opt->pmin, s->opt->pmin + s->mix.nch - 1,
 		    s->opt->pmin, s->opt->pmin + s->mix.nch - 1,
_at_@ -1519,14 +1524,18 @@ slot_initconv(struct slot *s)
 		s->mix.join = 1;
 		s->mix.expand = 1;
 		if (s->opt->dup) {
-			if (s->mix.cmap.nch > s->mix.nch)
-				s->mix.expand = s->mix.cmap.nch / s->mix.nch;
-			else if (s->mix.cmap.nch > 0)
-				s->mix.join = s->mix.nch / s->mix.cmap.nch;
+			if (target_nch > s->mix.nch)
+				s->mix.expand = target_nch / s->mix.nch;
+			else if (s->mix.cmap.nch > target_nch)
+				s->mix.join = s->mix.nch / target_nch;
 		}
 	}
 
 	if (s->mode & MODE_RECMASK) {
+		target_nch = d->rchan < (s->opt->rmax - s->opt->rmin + 1)
+		   ? d->rchan
+		   : (s->opt->pmax - s->opt->pmin + 1);
+
 		cmap_init(&s->sub.cmap,
 		    0, ((s->mode & MODE_MON) ? d->pchan : d->rchan) - 1,
 		    s->opt->rmin, s->opt->rmax,
_at_@ -1542,10 +1551,10 @@ slot_initconv(struct slot *s)
 		s->sub.join = 1;
 		s->sub.expand = 1;
 		if (s->opt->dup) {
-			if (s->sub.cmap.nch > s->sub.nch)
-				s->sub.join = s->sub.cmap.nch / s->sub.nch;
-			else if (s->sub.cmap.nch > 0)
-				s->sub.expand = s->sub.nch / s->sub.cmap.nch;
+			if (target_nch > s->sub.nch)
+				s->sub.join = target_nch / s->sub.nch;
+			else if (s->sub.nch > target_nch)
+				s->sub.expand = s->sub.nch / target_nch;
 		}
 
 		/*

dmesg:
OpenBSD 6.6-current (GENERIC.MP) #0: Thu Jan  2 22:06:44 EST 2020
    peter_at_shoebox-kvm-openbsd-current.foo:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 4177338368 (3983MB)
avail mem = 4038266880 (3851MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.8 _at_ 0xbffffc60 (17 entries)
bios0: vendor SeaBIOS version "rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org" date 04/01/2014
bios0: QEMU Standard PC (i440FX + PIIX, 1996)
acpi0 at bios0: ACPI 1.0
acpi0: sleep states S5
acpi0: tables DSDT FACP APIC
acpi0: wakeup devices
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: AMD EPYC Processor (with IBPB), 2994.28 MHz, 17-01-02
cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BMI1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,SHA,IBPB,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1
cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache, 16MB 64b/line 16-way L3 cache
cpu0: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu0: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 1000MHz
cpu1 at mainbus0: apid 1 (application processor)
cpu1: AMD EPYC Processor (with IBPB), 2993.98 MHz, 17-01-02
cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BMI1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,SHA,IBPB,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1
cpu1: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache, 16MB 64b/line 16-way L3 cache
cpu1: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu1: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu2 at mainbus0: apid 2 (application processor)
cpu2: AMD EPYC Processor (with IBPB), 2993.98 MHz, 17-01-02
cpu2: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BMI1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,SHA,IBPB,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1
cpu2: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache, 16MB 64b/line 16-way L3 cache
cpu2: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu2: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu3 at mainbus0: apid 3 (application processor)
cpu3: AMD EPYC Processor (with IBPB), 2994.01 MHz, 17-01-02
cpu3: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BMI1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,SHA,IBPB,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1
cpu3: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache, 16MB 64b/line 16-way L3 cache
cpu3: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu3: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu4 at mainbus0: apid 4 (application processor)
cpu4: AMD EPYC Processor (with IBPB), 2994.04 MHz, 17-01-02
cpu4: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BMI1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,SHA,IBPB,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1
cpu4: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache, 16MB 64b/line 16-way L3 cache
cpu4: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu4: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu5 at mainbus0: apid 5 (application processor)
cpu5: AMD EPYC Processor (with IBPB), 2994.04 MHz, 17-01-02
cpu5: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BMI1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,SHA,IBPB,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1
cpu5: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache, 16MB 64b/line 16-way L3 cache
cpu5: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu5: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu6 at mainbus0: apid 6 (application processor)
cpu6: AMD EPYC Processor (with IBPB), 2994.09 MHz, 17-01-02
cpu6: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BMI1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,SHA,IBPB,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1
cpu6: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache, 16MB 64b/line 16-way L3 cache
cpu6: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu6: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu7 at mainbus0: apid 7 (application processor)
cpu7: AMD EPYC Processor (with IBPB), 2993.90 MHz, 17-01-02
cpu7: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BMI1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,SHA,IBPB,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1
cpu7: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache, 16MB 64b/line 16-way L3 cache
cpu7: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu7: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
ioapic0 at mainbus0: apid 0 pa 0xfec00000, version 11, 24 pins
acpiprt0 at acpi0: bus 0 (PCI0)
acpicpu0 at acpi0: C1(_at_1 halt!)
acpicpu1 at acpi0: C1(_at_1 halt!)
acpicpu2 at acpi0: C1(_at_1 halt!)
acpicpu3 at acpi0: C1(_at_1 halt!)
acpicpu4 at acpi0: C1(_at_1 halt!)
acpicpu5 at acpi0: C1(_at_1 halt!)
acpicpu6 at acpi0: C1(_at_1 halt!)
acpicpu7 at acpi0: C1(_at_1 halt!)
"ACPI0006" at acpi0 not configured
acpipci0 at acpi0 PCI0: _OSC failed
acpicmos0 at acpi0
"PNP0A06" at acpi0 not configured
"PNP0A06" at acpi0 not configured
"PNP0A06" at acpi0 not configured
"QEMU0002" at acpi0 not configured
"ACPI0010" at acpi0 not configured
pvbus0 at mainbus0: KVM
pvclock0 at pvbus0
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel 82441FX" rev 0x02
pcib0 at pci0 dev 1 function 0 "Intel 82371SB ISA" rev 0x00
pciide0 at pci0 dev 1 function 1 "Intel 82371SB IDE" rev 0x00: DMA, channel 0 wired to compatibility, channel 1 wired to compatibility
atapiscsi0 at pciide0 channel 0 drive 1
scsibus1 at atapiscsi0: 2 targets
cd0 at scsibus1 targ 0 lun 0: <QEMU, QEMU DVD-ROM, 2.5+> removable
cd0(pciide0:0:1): using PIO mode 4, DMA mode 2
pciide0: channel 1 disabled (no drives)
piixpm0 at pci0 dev 1 function 3 "Intel 82371AB Power" rev 0x03: apic 0 int 9
iic0 at piixpm0
vga1 at pci0 dev 2 function 0 "Red Hat QXL Video" rev 0x04
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
virtio0 at pci0 dev 3 function 0 "Qumranet Virtio Network" rev 0x00
vio0 at virtio0: address 52:54:00:8c:24:71
virtio0: msix shared
auich0 at pci0 dev 4 function 0 "Intel 82801AA AC97" rev 0x01: apic 0 int 11, ICH
ac97: codec id 0x83847600 (SigmaTel STAC9700)
audio0 at auich0
uhci0 at pci0 dev 5 function 0 "Intel 82801I USB" rev 0x03: apic 0 int 10
uhci1 at pci0 dev 5 function 1 "Intel 82801I USB" rev 0x03: apic 0 int 10
uhci2 at pci0 dev 5 function 2 "Intel 82801I USB" rev 0x03: apic 0 int 11
ehci0 at pci0 dev 5 function 7 "Intel 82801I USB" rev 0x03: apic 0 int 11
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
virtio1 at pci0 dev 6 function 0 "Qumranet Virtio Console" rev 0x00
virtio1: no matching child driver; not configured
virtio2 at pci0 dev 7 function 0 "Qumranet Virtio Storage" rev 0x00
vioblk0 at virtio2
scsibus2 at vioblk0: 2 targets
sd0 at scsibus2 targ 0 lun 0: <VirtIO, Block Device, >
sd0: 65536MB, 512 bytes/sector, 134217728 sectors
virtio2: msix shared
virtio3 at pci0 dev 8 function 0 "Qumranet Virtio Memory Balloon" rev 0x00
viomb0 at virtio3
virtio3: apic 0 int 11
virtio4 at pci0 dev 9 function 0 "Qumranet Virtio Network" rev 0x00
vio1 at virtio4: address 52:54:00:4b:99:34
virtio4: msix shared
virtio5 at pci0 dev 10 function 0 "Qumranet Virtio Storage" rev 0x00
vioblk1 at virtio5
scsibus3 at vioblk1: 2 targets
sd1 at scsibus3 targ 0 lun 0: <VirtIO, Block Device, >
sd1: 6144MB, 512 bytes/sector, 12582912 sectors
virtio5: msix shared
virtio6 at pci0 dev 11 function 0 "Qumranet Virtio Storage" rev 0x00
vioblk2 at virtio6
scsibus4 at vioblk2: 2 targets
sd2 at scsibus4 targ 0 lun 0: <VirtIO, Block Device, >
sd2: 1024MB, 512 bytes/sector, 2097152 sectors
virtio6: msix shared
virtio7 at pci0 dev 12 function 0 "Qumranet Virtio RNG" rev 0x00
viornd0 at virtio7
virtio7: apic 0 int 11
isa0 at pcib0
isadma0 at isa0
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
usb1 at uhci0: USB revision 1.0
uhub1 at usb1 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb2 at uhci1: USB revision 1.0
uhub2 at usb2 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb3 at uhci2: USB revision 1.0
uhub3 at usb3 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
uhidev0 at uhub0 port 3 configuration 1 interface 0 "QEMU QEMU USB Tablet" rev 2.00/0.00 addr 2
uhidev0: iclass 3/0
ums0 at uhidev0: 3 buttons, Z dir
wsmouse1 at ums0 mux 0
vscsi0 at root
scsibus5 at vscsi0: 256 targets
softraid0 at root
scsibus6 at softraid0: 256 targets
root on sd0a (11567ccd97827ab4.a) swap on sd0b dump on sd0b
fd0 at fdc0 drive 1: density unknown

usbdevs:
Controller /dev/usb0:
addr 01: 8086:0000 Intel, EHCI root hub
	 high speed, self powered, config 1, rev 1.00
	 driver: uhub0
addr 02: 0627:0001 QEMU, QEMU USB Tablet
	 high speed, power 100 mA, config 1, rev 0.00, iSerial 42
	 driver: uhidev0
Controller /dev/usb1:
addr 01: 8086:0000 Intel, UHCI root hub
	 full speed, self powered, config 1, rev 1.00
	 driver: uhub1
Controller /dev/usb2:
addr 01: 8086:0000 Intel, UHCI root hub
	 full speed, self powered, config 1, rev 1.00
	 driver: uhub2
Controller /dev/usb3:
addr 01: 8086:0000 Intel, UHCI root hub
	 full speed, self powered, config 1, rev 1.00
	 driver: uhub3
Received on Sat Jan 04 2020 - 05:59:06 CET

This archive was generated by hypermail 2.3.0 : Sun Jan 05 2020 - 01:32:46 CET