Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
Connecting a Pi to Gentoo using an Adafruit 954 cable
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Gentoo on ARM
View previous topic :: View next topic  
Author Message
Aries97
n00b
n00b


Joined: 04 Nov 2005
Posts: 63

PostPosted: Tue Jul 04, 2017 9:05 pm    Post subject: Connecting a Pi to Gentoo using an Adafruit 954 cable Reply with quote

I've bought an Adafruit 954 USB-TTL cable to connect my raspberry pi to my laptop. I followed the adafruit Lesson on how to activate support for it on the Pi (Still running Rasbian Jesse for the moment). The problem I'm having is that I haven't figured out how to connect from my computer running Gentoo to the RPi using the serial cable.

When I connect the serial cable to the computer it appears to be recognized correctly:
Code:
silverfish /home/anon # tail /var/log/messages
{SNIP}
Jul  4 13:05:28 silverfish kernel: [  140.865633] usb 1-1: new full-speed USB device number 5 using xhci_hcd
Jul  4 13:05:28 silverfish kernel: [  141.034442] usb 1-1: New USB device found, idVendor=067b, idProduct=2303
Jul  4 13:05:28 silverfish kernel: [  141.034444] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Jul  4 13:05:28 silverfish kernel: [  141.034445] usb 1-1: Product: USB-Serial Controller
Jul  4 13:05:28 silverfish kernel: [  141.034446] usb 1-1: Manufacturer: Prolific Technology Inc.
Jul  4 13:05:28 silverfish mtp-probe: checking bus 1, device 5: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1"
Jul  4 13:05:28 silverfish mtp-probe: bus: 1, device: 5 was not an MTP device
silverfish /home/anon #

The adafruit instructions suggest that the next step would be to connect to the TTY using a terminal program. Screen is suggested:
Code:
silverfish /home/anon # screen /dev/ttyUSB0 115200
/tmp/screen/S-root/3653.pts-0.silverfish: connect: No such file or directory

Gentoo apparently doesn't have the same TTY device names as whatever distribution Simon Monk and lady ada were using.

In /dev/ there are a lot of TTY devices:
Code:
 silverfish /home/anon # ls /dev
autofs           hidraw0       mapper            nbd6                sda2    tty15  tty31  tty48  tty7     vcs7
block            hidraw1       mcelog            nbd7                sda3    tty16  tty32  tty49  tty8     vcs8
bsg              hidraw2       mei0              nbd8                sg0     tty17  tty33  tty5   tty9     vcs9
btrfs-control    hpet          mem               nbd9                sg1     tty18  tty34  tty50  urandom  vcsa
bus              hwrng         memory_bandwidth  net                 shm     tty19  tty35  tty51  usb      vcsa1
cdrom            initctl       mqueue            network_latency     snd     tty2   tty36  tty52  usbmon0  vcsa10
char             input         nbd0              network_throughput  sr0     tty20  tty37  tty53  usbmon1  vcsa11
console          kmsg          nbd1              null                stderr  tty21  tty38  tty54  usbmon2  vcsa12
core             log           nbd10             pktcdvd             stdin   tty22  tty39  tty55  vcs      vcsa2
cpu              loop-control  nbd11             port                stdout  tty23  tty4   tty56  vcs1     vcsa3
cpu_dma_latency  loop0         nbd12             ptmx                tty     tty24  tty40  tty57  vcs10    vcsa4
cuse             loop1         nbd13             pts                 tty0    tty25  tty41  tty58  vcs11    vcsa5
disk             loop2         nbd14             random              tty1    tty26  tty42  tty59  vcs12    vcsa6
dri              loop3         nbd15             rfkill              tty10   tty27  tty43  tty6   vcs2     vcsa7
fb0              loop4         nbd2              rtc                 tty11   tty28  tty44  tty60  vcs3     vcsa8
fd               loop5         nbd3              rtc0                tty12   tty29  tty45  tty61  vcs4     vcsa9
full             loop6         nbd4              sda                 tty13   tty3   tty46  tty62  vcs5     vga_arbiter
fuse             loop7         nbd5              sda1                tty14   tty30  tty47  tty63  vcs6     zero
silverfish /home/anon #

But I don't know if any of these will help me connect to the Serial Console Cable.
According to the tutorial:
Quote:
Linux Kernels 2.4.31 and above already have the PL2303 and CP210X USB driver for the Console Lead built-in, so you should not need to install that.

Because I've compiled my own Kernel on Gentoo I wonder if I left out something that is required to support this device; but I haven't figured out what yet.
Ideas?
Back to top
View user's profile Send private message
NeddySeagoon
Administrator
Administrator


Joined: 05 Jul 2003
Posts: 47139
Location: 56N 3W

PostPosted: Tue Jul 04, 2017 9:52 pm    Post subject: Reply with quote

Aries97,

That's the prolific device. I have one of those.

Code:
$ grep 2303 /usr/src/linux/.config 
CONFIG_USB_SERIAL_PL2303=m

_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
Back to top
View user's profile Send private message
Aries97
n00b
n00b


Joined: 04 Nov 2005
Posts: 63

PostPosted: Tue Jul 04, 2017 10:05 pm    Post subject: Reply with quote

Ha!
Code:
Device Drivers - USB Support - USB Serial Converter Support - USB CP210x family of UART Bridge Controllers
  Device Drivers - USB Support - USB Serial Converter Support - USB Prolific 2303 Single Port Serial Driver


Quote:
silverfish /home/anon # tail /var/log/messages
Jul 4 15:20:35 silverfish kernel: [ 34.951093] usb 1-1: USB disconnect, device number 2
Jul 4 15:20:41 silverfish kernel: [ 40.739591] usb 1-1: new full-speed USB device number 6 using xhci_hcd
Jul 4 15:20:41 silverfish kernel: [ 40.908355] usb 1-1: New USB device found, idVendor=067b, idProduct=2303
Jul 4 15:20:41 silverfish kernel: [ 40.908357] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Jul 4 15:20:41 silverfish kernel: [ 40.908358] usb 1-1: Product: USB-Serial Controller
Jul 4 15:20:41 silverfish kernel: [ 40.908359] usb 1-1: Manufacturer: Prolific Technology Inc.
Jul 4 15:20:41 silverfish kernel: [ 40.908709] pl2303 1-1:1.0: pl2303 converter detected
Jul 4 15:20:41 silverfish kernel: [ 40.909225] usb 1-1: pl2303 converter now attached to ttyUSB0
Jul 4 15:20:41 silverfish mtp-probe: checking bus 1, device 6: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1"
Jul 4 15:20:41 silverfish mtp-probe: bus: 1, device: 6 was not an MTP device
silverfish /home/anon #

{After exiting my existing screen session:}

silverfish /home/anon # screen /dev/ttyUSB0 115200

Raspbian GNU/Linux 8 raspberrypi ttyAMA0

raspberrypi login:


Victory!
Thank you.
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Gentoo on ARM All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum