Headless pi zero HID keyboard
I am trying to get my pi zero to act as a HID USB keyboard when plugged in to a computer, following this guide.
I finished the configuration, and I get to the "Keyboard / Mouse / Joystick (HID)" section. I added these commands to the bottom of /etc/rc.local:
sudo echo -ne "x4" > /dev/hidg0
sudo echo -ne "" > /dev/hidg0
When I plug the pi zero into the target computer, it recognizes the USB device, as shown by dmesg:
[26919.807536] usb 1-1: new high-speed USB device number 48 using xhci_hcd
[26919.828689] usb 1-1: New USB device found, idVendor=1d6b, idProduct=0104
[26919.828698] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[26919.828704] usb 1-1: Product: iSticktoit.net USB Device
[26919.828709] usb 1-1: Manufacturer: Tobias Girstmair
[26919.828713] usb 1-1: SerialNumber: fedcba9876543210
[26919.831132] input: Tobias Girstmair iSticktoit.net USB Device as /devices/pci0000:00/0000:00:15.0/usb1/1-1/1-1:1.0/0003:1D6B:0104.0007/input/input21
[26919.888595] hid-generic 0003:1D6B:0104.0007: input,hidraw1: USB HID v1.01 Keyboard [Tobias Girstmair iSticktoit.net USB Device] on usb-0000:00:15.0-1/input0
But the computer does not receive any keystrokes at all. I am really struggling to figure this out, and I would apreciate any help. Thanks!
usb pi-zero headless gadget hid
asked Dec 15 '18 at 17:43
eezeeeze
1063
add a comment |
I am trying to get my pi zero to act as a HID USB keyboard when plugged in to a computer, following this guide.
I finished the configuration, and I get to the "Keyboard / Mouse / Joystick (HID)" section. I added these commands to the bottom of /etc/rc.local:
sudo echo -ne "x4" > /dev/hidg0
sudo echo -ne "" > /dev/hidg0
When I plug the pi zero into the target computer, it recognizes the USB device, as shown by dmesg:
[26919.807536] usb 1-1: new high-speed USB device number 48 using xhci_hcd
[26919.828689] usb 1-1: New USB device found, idVendor=1d6b, idProduct=0104
[26919.828698] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[26919.828704] usb 1-1: Product: iSticktoit.net USB Device
[26919.828709] usb 1-1: Manufacturer: Tobias Girstmair
[26919.828713] usb 1-1: SerialNumber: fedcba9876543210
[26919.831132] input: Tobias Girstmair iSticktoit.net USB Device as /devices/pci0000:00/0000:00:15.0/usb1/1-1/1-1:1.0/0003:1D6B:0104.0007/input/input21
[26919.888595] hid-generic 0003:1D6B:0104.0007: input,hidraw1: USB HID v1.01 Keyboard [Tobias Girstmair iSticktoit.net USB Device] on usb-0000:00:15.0-1/input0
But the computer does not receive any keystrokes at all. I am really struggling to figure this out, and I would apreciate any help. Thanks!
usb pi-zero headless gadget hid
asked Dec 15 '18 at 17:43
eezeeeze
1063
1
Please take note that using/etc/rc.localhas limitations due to Compatibility with SysV. Following the recommendation of the developers from systemd you should avoid using it. Maybe writing to/dev/hidg0comes to early?
– Ingo
Dec 15 '18 at 19:09
@Ingo Thanks for the suggestion. How would you recommend I do it instead? I was thinking maybe cron, but that might also come too early.
– eeze
Dec 15 '18 at 19:23
I have made an answer.
– Ingo
Dec 15 '18 at 19:45
add a comment |
I am trying to get my pi zero to act as a HID USB keyboard when plugged in to a computer, following this guide.
I finished the configuration, and I get to the "Keyboard / Mouse / Joystick (HID)" section. I added these commands to the bottom of /etc/rc.local:
sudo echo -ne "x4" > /dev/hidg0
sudo echo -ne "" > /dev/hidg0
When I plug the pi zero into the target computer, it recognizes the USB device, as shown by dmesg:
[26919.807536] usb 1-1: new high-speed USB device number 48 using xhci_hcd
[26919.828689] usb 1-1: New USB device found, idVendor=1d6b, idProduct=0104
[26919.828698] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[26919.828704] usb 1-1: Product: iSticktoit.net USB Device
[26919.828709] usb 1-1: Manufacturer: Tobias Girstmair
[26919.828713] usb 1-1: SerialNumber: fedcba9876543210
[26919.831132] input: Tobias Girstmair iSticktoit.net USB Device as /devices/pci0000:00/0000:00:15.0/usb1/1-1/1-1:1.0/0003:1D6B:0104.0007/input/input21
[26919.888595] hid-generic 0003:1D6B:0104.0007: input,hidraw1: USB HID v1.01 Keyboard [Tobias Girstmair iSticktoit.net USB Device] on usb-0000:00:15.0-1/input0
But the computer does not receive any keystrokes at all. I am really struggling to figure this out, and I would apreciate any help. Thanks!
usb pi-zero headless gadget hid
asked Dec 15 '18 at 17:43
eezeeeze
1063
I am trying to get my pi zero to act as a HID USB keyboard when plugged in to a computer, following this guide.
I finished the configuration, and I get to the "Keyboard / Mouse / Joystick (HID)" section. I added these commands to the bottom of /etc/rc.local:
sudo echo -ne "x4" > /dev/hidg0
sudo echo -ne "" > /dev/hidg0
When I plug the pi zero into the target computer, it recognizes the USB device, as shown by dmesg:
[26919.807536] usb 1-1: new high-speed USB device number 48 using xhci_hcd
[26919.828689] usb 1-1: New USB device found, idVendor=1d6b, idProduct=0104
[26919.828698] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[26919.828704] usb 1-1: Product: iSticktoit.net USB Device
[26919.828709] usb 1-1: Manufacturer: Tobias Girstmair
[26919.828713] usb 1-1: SerialNumber: fedcba9876543210
[26919.831132] input: Tobias Girstmair iSticktoit.net USB Device as /devices/pci0000:00/0000:00:15.0/usb1/1-1/1-1:1.0/0003:1D6B:0104.0007/input/input21
[26919.888595] hid-generic 0003:1D6B:0104.0007: input,hidraw1: USB HID v1.01 Keyboard [Tobias Girstmair iSticktoit.net USB Device] on usb-0000:00:15.0-1/input0
But the computer does not receive any keystrokes at all. I am really struggling to figure this out, and I would apreciate any help. Thanks!
usb pi-zero headless gadget hid
usb pi-zero headless gadget hid
asked Dec 15 '18 at 17:43
eezeeeze
1063
asked Dec 15 '18 at 17:43
eezeeeze
1063
asked Dec 15 '18 at 17:43
eezeeeze
1063
asked Dec 15 '18 at 17:43
eezeeeze
1063
asked Dec 15 '18 at 17:43
eezeeeze
1063
1063
1
Please take note that using/etc/rc.localhas limitations due to Compatibility with SysV. Following the recommendation of the developers from systemd you should avoid using it. Maybe writing to/dev/hidg0comes to early?
– Ingo
Dec 15 '18 at 19:09
@Ingo Thanks for the suggestion. How would you recommend I do it instead? I was thinking maybe cron, but that might also come too early.
– eeze
Dec 15 '18 at 19:23
I have made an answer.
– Ingo
Dec 15 '18 at 19:45
add a comment |
1
Please take note that using/etc/rc.localhas limitations due to Compatibility with SysV. Following the recommendation of the developers from systemd you should avoid using it. Maybe writing to/dev/hidg0comes to early?
– Ingo
Dec 15 '18 at 19:09
@Ingo Thanks for the suggestion. How would you recommend I do it instead? I was thinking maybe cron, but that might also come too early.
– eeze
Dec 15 '18 at 19:23
I have made an answer.
– Ingo
Dec 15 '18 at 19:45
1
1
Please take note that using
/etc/rc.local has limitations due to Compatibility with SysV. Following the recommendation of the developers from systemd you should avoid using it. Maybe writing to /dev/hidg0 comes to early?– Ingo
Dec 15 '18 at 19:09
Please take note that using
/etc/rc.local has limitations due to Compatibility with SysV. Following the recommendation of the developers from systemd you should avoid using it. Maybe writing to /dev/hidg0 comes to early?– Ingo
Dec 15 '18 at 19:09
@Ingo Thanks for the suggestion. How would you recommend I do it instead? I was thinking maybe cron, but that might also come too early.
– eeze
Dec 15 '18 at 19:23
@Ingo Thanks for the suggestion. How would you recommend I do it instead? I was thinking maybe cron, but that might also come too early.
– eeze
Dec 15 '18 at 19:23
I have made an answer.
– Ingo
Dec 15 '18 at 19:45
I have made an answer.
– Ingo
Dec 15 '18 at 19:45
add a comment |
1 Answer
1
active
oldest
votes
I don't know if this helps but it reduces one possible source of error. Doing what the developers from systemd suggest is using a Unit file. Here is a very generic one for your problem. Create a new unit file with:
rpi ~$ sudo systemctl edit --force --full hid-keyboard.service
In the empty editor insert these statements, save them and quit the editor:
[Unit]
Description=HID keyboard emulator
After=multi-user.target
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/bin/bash -c 'echo -ne "x4" > /dev/hidg0'
ExecStart=/bin/bash -c 'echo -ne "" > /dev/hidg0'
[Install]
WantedBy=multi-user.target
Enable the new service with:
rpi ~$ sudo systemctl enable hid-keyboard.service
On boot/startup/poweron it is executed one time. You can manual restart it and show its status with
rpi ~$ sudo systemctl restart hid-keyboard.service
rpi ~$ sudo systemctl status hid-keyboard.service
answered Dec 15 '18 at 19:44
IngoIngo
6,3072638
"On reboot it should be executed one time." Does this mean it will only work when I reboot withreboot, or will it also run on startup, if I plug it in to power?
– eeze
Dec 15 '18 at 19:53
I tried the steps in the answer, and still nothing happens
– eeze
Dec 15 '18 at 19:55
@eeze I have updated my answer about reboot. I suspected that nothing happens. I had just a quick view at the tutorial you have linked. Just on Step 0 I stopped reading. The tutorial is made for Raspbian Jessie so it seems a bit outdated. Do you use Jessie? I wouldn't like to investigate it anymore.
– Ingo
Dec 15 '18 at 20:35
Alright, thanks for the help. I will look more into it. Thanks again for the help!
– eeze
Dec 15 '18 at 20:42
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
return StackExchange.using("schematics", function () {
StackExchange.schematics.init();
});
}, "cicuitlab");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "447"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fraspberrypi.stackexchange.com%2fquestions%2f91953%2fheadless-pi-zero-hid-keyboard%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I don't know if this helps but it reduces one possible source of error. Doing what the developers from systemd suggest is using a Unit file. Here is a very generic one for your problem. Create a new unit file with:
rpi ~$ sudo systemctl edit --force --full hid-keyboard.service
In the empty editor insert these statements, save them and quit the editor:
[Unit]
Description=HID keyboard emulator
After=multi-user.target
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/bin/bash -c 'echo -ne "x4" > /dev/hidg0'
ExecStart=/bin/bash -c 'echo -ne "" > /dev/hidg0'
[Install]
WantedBy=multi-user.target
Enable the new service with:
rpi ~$ sudo systemctl enable hid-keyboard.service
On boot/startup/poweron it is executed one time. You can manual restart it and show its status with
rpi ~$ sudo systemctl restart hid-keyboard.service
rpi ~$ sudo systemctl status hid-keyboard.service
answered Dec 15 '18 at 19:44
IngoIngo
6,3072638
"On reboot it should be executed one time." Does this mean it will only work when I reboot withreboot, or will it also run on startup, if I plug it in to power?
– eeze
Dec 15 '18 at 19:53
I tried the steps in the answer, and still nothing happens
– eeze
Dec 15 '18 at 19:55
@eeze I have updated my answer about reboot. I suspected that nothing happens. I had just a quick view at the tutorial you have linked. Just on Step 0 I stopped reading. The tutorial is made for Raspbian Jessie so it seems a bit outdated. Do you use Jessie? I wouldn't like to investigate it anymore.
– Ingo
Dec 15 '18 at 20:35
Alright, thanks for the help. I will look more into it. Thanks again for the help!
– eeze
Dec 15 '18 at 20:42
add a comment |
I don't know if this helps but it reduces one possible source of error. Doing what the developers from systemd suggest is using a Unit file. Here is a very generic one for your problem. Create a new unit file with:
rpi ~$ sudo systemctl edit --force --full hid-keyboard.service
In the empty editor insert these statements, save them and quit the editor:
[Unit]
Description=HID keyboard emulator
After=multi-user.target
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/bin/bash -c 'echo -ne "x4" > /dev/hidg0'
ExecStart=/bin/bash -c 'echo -ne "" > /dev/hidg0'
[Install]
WantedBy=multi-user.target
Enable the new service with:
rpi ~$ sudo systemctl enable hid-keyboard.service
On boot/startup/poweron it is executed one time. You can manual restart it and show its status with
rpi ~$ sudo systemctl restart hid-keyboard.service
rpi ~$ sudo systemctl status hid-keyboard.service
answered Dec 15 '18 at 19:44
IngoIngo
6,3072638
"On reboot it should be executed one time." Does this mean it will only work when I reboot withreboot, or will it also run on startup, if I plug it in to power?
– eeze
Dec 15 '18 at 19:53
I tried the steps in the answer, and still nothing happens
– eeze
Dec 15 '18 at 19:55
@eeze I have updated my answer about reboot. I suspected that nothing happens. I had just a quick view at the tutorial you have linked. Just on Step 0 I stopped reading. The tutorial is made for Raspbian Jessie so it seems a bit outdated. Do you use Jessie? I wouldn't like to investigate it anymore.
– Ingo
Dec 15 '18 at 20:35
Alright, thanks for the help. I will look more into it. Thanks again for the help!
– eeze
Dec 15 '18 at 20:42
add a comment |
I don't know if this helps but it reduces one possible source of error. Doing what the developers from systemd suggest is using a Unit file. Here is a very generic one for your problem. Create a new unit file with:
rpi ~$ sudo systemctl edit --force --full hid-keyboard.service
In the empty editor insert these statements, save them and quit the editor:
[Unit]
Description=HID keyboard emulator
After=multi-user.target
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/bin/bash -c 'echo -ne "x4" > /dev/hidg0'
ExecStart=/bin/bash -c 'echo -ne "" > /dev/hidg0'
[Install]
WantedBy=multi-user.target
Enable the new service with:
rpi ~$ sudo systemctl enable hid-keyboard.service
On boot/startup/poweron it is executed one time. You can manual restart it and show its status with
rpi ~$ sudo systemctl restart hid-keyboard.service
rpi ~$ sudo systemctl status hid-keyboard.service
answered Dec 15 '18 at 19:44
IngoIngo
6,3072638
I don't know if this helps but it reduces one possible source of error. Doing what the developers from systemd suggest is using a Unit file. Here is a very generic one for your problem. Create a new unit file with:
rpi ~$ sudo systemctl edit --force --full hid-keyboard.service
In the empty editor insert these statements, save them and quit the editor:
[Unit]
Description=HID keyboard emulator
After=multi-user.target
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/bin/bash -c 'echo -ne "x4" > /dev/hidg0'
ExecStart=/bin/bash -c 'echo -ne "" > /dev/hidg0'
[Install]
WantedBy=multi-user.target
Enable the new service with:
rpi ~$ sudo systemctl enable hid-keyboard.service
On boot/startup/poweron it is executed one time. You can manual restart it and show its status with
rpi ~$ sudo systemctl restart hid-keyboard.service
rpi ~$ sudo systemctl status hid-keyboard.service
answered Dec 15 '18 at 19:44
IngoIngo
6,3072638
edited Dec 15 '18 at 20:11
answered Dec 15 '18 at 19:44
IngoIngo
6,3072638
answered Dec 15 '18 at 19:44
IngoIngo
6,3072638
answered Dec 15 '18 at 19:44
IngoIngo
6,3072638
6,3072638
"On reboot it should be executed one time." Does this mean it will only work when I reboot withreboot, or will it also run on startup, if I plug it in to power?
– eeze
Dec 15 '18 at 19:53
I tried the steps in the answer, and still nothing happens
– eeze
Dec 15 '18 at 19:55
@eeze I have updated my answer about reboot. I suspected that nothing happens. I had just a quick view at the tutorial you have linked. Just on Step 0 I stopped reading. The tutorial is made for Raspbian Jessie so it seems a bit outdated. Do you use Jessie? I wouldn't like to investigate it anymore.
– Ingo
Dec 15 '18 at 20:35
Alright, thanks for the help. I will look more into it. Thanks again for the help!
– eeze
Dec 15 '18 at 20:42
add a comment |
"On reboot it should be executed one time." Does this mean it will only work when I reboot withreboot, or will it also run on startup, if I plug it in to power?
– eeze
Dec 15 '18 at 19:53
I tried the steps in the answer, and still nothing happens
– eeze
Dec 15 '18 at 19:55
@eeze I have updated my answer about reboot. I suspected that nothing happens. I had just a quick view at the tutorial you have linked. Just on Step 0 I stopped reading. The tutorial is made for Raspbian Jessie so it seems a bit outdated. Do you use Jessie? I wouldn't like to investigate it anymore.
– Ingo
Dec 15 '18 at 20:35
Alright, thanks for the help. I will look more into it. Thanks again for the help!
– eeze
Dec 15 '18 at 20:42
"On reboot it should be executed one time." Does this mean it will only work when I reboot with
reboot, or will it also run on startup, if I plug it in to power?– eeze
Dec 15 '18 at 19:53
"On reboot it should be executed one time." Does this mean it will only work when I reboot with
reboot, or will it also run on startup, if I plug it in to power?– eeze
Dec 15 '18 at 19:53
I tried the steps in the answer, and still nothing happens
– eeze
Dec 15 '18 at 19:55
I tried the steps in the answer, and still nothing happens
– eeze
Dec 15 '18 at 19:55
@eeze I have updated my answer about reboot. I suspected that nothing happens. I had just a quick view at the tutorial you have linked. Just on Step 0 I stopped reading. The tutorial is made for Raspbian Jessie so it seems a bit outdated. Do you use Jessie? I wouldn't like to investigate it anymore.
– Ingo
Dec 15 '18 at 20:35
@eeze I have updated my answer about reboot. I suspected that nothing happens. I had just a quick view at the tutorial you have linked. Just on Step 0 I stopped reading. The tutorial is made for Raspbian Jessie so it seems a bit outdated. Do you use Jessie? I wouldn't like to investigate it anymore.
– Ingo
Dec 15 '18 at 20:35
Alright, thanks for the help. I will look more into it. Thanks again for the help!
– eeze
Dec 15 '18 at 20:42
Alright, thanks for the help. I will look more into it. Thanks again for the help!
– eeze
Dec 15 '18 at 20:42
add a comment |
Thanks for contributing an answer to Raspberry Pi Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fraspberrypi.stackexchange.com%2fquestions%2f91953%2fheadless-pi-zero-hid-keyboard%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
1
Please take note that using
/etc/rc.localhas limitations due to Compatibility with SysV. Following the recommendation of the developers from systemd you should avoid using it. Maybe writing to/dev/hidg0comes to early?– Ingo
Dec 15 '18 at 19:09
@Ingo Thanks for the suggestion. How would you recommend I do it instead? I was thinking maybe cron, but that might also come too early.
– eeze
Dec 15 '18 at 19:23
I have made an answer.
– Ingo
Dec 15 '18 at 19:45