Arch Linux

flak37

Member

Registered: 2013-12-16

Posts: 2

CP2102 Serial to USB converters stopped working

Before updating yesterday, my CP2102 Serial to USB converters would work out of the box and show up as /dev/ttyUSB0 and /dev/ttyUSB1 when plugged into my USB port
Now they don't show up at all.

lsusb:

Bus 002 Device 006: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP210x UART Bridge / myAVR mySmartUSB light

dmesg:

[86552.644525] usb 2-1.4: new full-speed USB device number 6 using ehci-pci

lsmod:

ctr                    12927  1 
ccm                    17534  1 
arc4                   12536  2 
rtl8192cu              66273  0 
rtl_usb                17592  1 rtl8192cu
rtl8192c_common        44268  1 rtl8192cu
rtlwifi                67295  3 rtl_usb,rtl8192c_common,rtl8192cu
coretemp               12820  0 
hwmon                  12930  1 coretemp
intel_rapl             17605  0 
mac80211              648753  3 rtl_usb,rtlwifi,rtl8192cu
iosf_mbi               12682  1 intel_rapl
x86_pkg_temp_thermal    12951  0 
intel_powerclamp       17122  0 
mousedev               17272  0 
joydev                 17063  0 
cfg80211              476584  2 mac80211,rtlwifi
rfkill                 18867  2 cfg80211
kvm                   435299  0 
crct10dif_pclmul       13394  0 
crc32_pclmul           12915  0 
crc32c_intel           21809  0 
ghash_clmulni_intel    12978  0 
aesni_intel           167997  2 
nvidia              10512002  182 
aes_x86_64             16719  1 aesni_intel
lrw                    12757  1 aesni_intel
gf128mul               12970  1 lrw
iTCO_wdt               12831  0 
glue_helper            12649  1 aesni_intel
ablk_helper            12572  1 aesni_intel
serio_raw              12849  0 
snd_hda_codec_realtek    67322  1 
i2c_i801               16965  0 
iTCO_vendor_support    12649  1 iTCO_wdt
drm                   273125  3 nvidia
ie31200_edac           12567  0 
r8169                  76869  0 
edac_core              47176  1 ie31200_edac
cryptd                 18553  3 ghash_clmulni_intel,aesni_intel,ablk_helper
psmouse               107442  0 
i2c_core               50240  3 drm,i2c_i801,nvidia
evdev                  21544  7 
mac_hid                12633  0 
pcspkr                 12595  0 
mii                    12675  1 r8169
snd_hda_codec_hdmi     49263  4 
snd_hda_codec_generic    63087  1 snd_hda_codec_realtek
mei_me                 17987  0 
video                  22205  0 
mei                    75468  1 mei_me
battery                17452  0 
thermal                17559  0 
shpchp                 35210  0 
snd_hda_intel          26387  7 
snd_hda_controller     26857  1 snd_hda_intel
snd_hda_codec         112621  5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
snd_hwdep              17244  1 snd_hda_codec
snd_pcm                88779  5 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
snd_timer              26614  1 snd_pcm
snd                    73436  21 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
soundcore              13031  2 snd,snd_hda_codec
lpc_ich                20768  0 
button                 12953  0 
processor              27777  0 
fan                    12726  0 
sch_fq_codel           17343  6 
pci_stub               12429  1 
vboxpci                23139  0 
vboxnetflt             27412  0 
vboxnetadp             25443  0 
vboxdrv               352683  3 vboxnetadp,vboxnetflt,vboxpci
ext4                  514390  1 
crc16                  12343  1 ext4
mbcache                17171  1 ext4
jbd2                   86379  1 ext4
hid_generic            12393  0 
usbhid                 48596  0 
hid                   110513  2 hid_generic,usbhid
sd_mod                 43575  3 
sr_mod                 21903  0 
cdrom                  47479  1 sr_mod
ata_generic            12490  0 
pata_acpi              12771  0 
atkbd                  22254  0 
libps2                 12739  2 atkbd,psmouse
ata_piix               33592  2 
libata                181461  3 pata_acpi,ata_generic,ata_piix
ehci_pci               12512  0 
ehci_hcd               69979  1 ehci_pci
scsi_mod              147395  3 libata,sd_mod,sr_mod
usbcore               199382  5 rtl_usb,ehci_hcd,ehci_pci,usbhid,rtl8192cu
usb_common             12561  1 usbcore
i8042                  18002  1 libps2
serio                  18282  6 serio_raw,atkbd,i8042,psmouse

Would appreciate any help in fixing this. Thanks

Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 30,480

Website

Re: CP2102 Serial to USB converters stopped working

What was updated yesterday?  Was the kernel updated?  If so, did you reboot?

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"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman