# EM7565 on Raspberry Pi with OpenWRT - USB device listed but not usable **URL:** \ **Category:** MC/EM Series\ **Created:** [August 22, 2022, 3:30am UTC](https://forum.sierrawireless.com/t/em7565-on-raspberry-pi-with-openwrt-usb-device-listed-but-not-usable/27675 "2022-08-22T03:30:56Z")\ **Posts on this page:** 1\ **Showing post:** 6
**Author:** ![rspmn](https://avatars.discourse-cdn.com/v4/letter/r/43a26b/32.png) [@rspmn](https://forum.sierrawireless.com/u/rspmn)\ **Post date:** [August 22, 2022, 10:38am UTC](https://forum.sierrawireless.com/t/em7565-on-raspberry-pi-with-openwrt-usb-device-listed-but-not-usable/27675/6 "2022-08-22T10:38:31Z")
Hi @geerlingguy, your EM7565 has been set to a different USB id 1199:90c3 which is not known by the mainline Linux kernel drivers [https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/usb/serial/qcserial.c?id=92a18a657fb2e2ffbfa0659af32cc18fd2346516](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/usb/serial/qcserial.c?id=92a18a657fb2e2ffbfa0659af32cc18fd2346516) [kernel/git/torvalds/linux.git - Linux kernel source tree](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/net/usb/qmi_wwan.c?id=aceef61ee56898cfa7b6960fb60b9326c3860441) . Similar to [How to interact with MC7710 after ppp configured - #6 by mlw](https://forum.sierrawireless.com/t/how-to-interact-with-mc7710-after-ppp-configured/7379/6) you would have to use `AT!UDPID=9091` to make the EM7565 usable with OpenWRT. To be able to send AT commands to the EM7565 with minicom, screen etc. on USB id 1199:90c3 you can use ```auto modprobe option echo 1199 90c3 > /sys/bus/usb-serial/drivers/option1/new_id ``` . One of the newly created /dev/ttyUSB devices should (hopefully) respond to AT commands. Regards, Reinhard --- _[View the full topic](https://forum.sierrawireless.com/t/em7565-on-raspberry-pi-with-openwrt-usb-device-listed-but-not-usable/27675)._