# KSLEEP=1 in RC7611, didn't make modem into Sleep Idle-LTE

**URL:** <https://forum.sierrawireless.com/t/ksleep-1-in-rc7611-didnt-make-modem-into-sleep-idle-lte/33826>\
**Category:** Uncategorized\
**Created:** [October 15, 2024, 3:19pm UTC](https://forum.sierrawireless.com/t/ksleep-1-in-rc7611-didnt-make-modem-into-sleep-idle-lte/33826 "2024-10-15T15:19:17Z")\
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**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\
**Post date:** [October 17, 2024, 12:57am UTC](https://forum.sierrawireless.com/t/ksleep-1-in-rc7611-didnt-make-modem-into-sleep-idle-lte/33826/4 "2024-10-17T00:57:33Z")

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Yes, host platform needs to put module to usb selective suspend mode

Here is an example on how to control the USB in linux:

> [@QMI interface unresponsive for first command](https://forum.sierrawireless.com/t/qmi-interface-unresponsive-for-first-command/25432/18):
>
> I tried selective suspend setting on other module SL808x. see if this document can be reused: [How to test the sleep mode for SL808X under Linux.docx](https://forum.sierrawireless.com/uploads/short-url/5mN0YGZJ0B5MFXJawZfMZ5B9Etp.docx) (13.2 KB)

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