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The TX partial mode in USB devices will cause timeout to wait for payload, causing SER 0x999 and disconnection. Turn off this mode according to design suggestion. rtw89_8852cu 2-4:1.0: FW status = 0xee001108 rtw89_8852cu 2-4:1.0: FW BADADDR = 0x18605fc8 rtw89_8852cu 2-4:1.0: FW EPC/RA = 0x0 rtw89_8852cu 2-4:1.0: FW MISC = 0x1010000 rtw89_8852cu 2-4:1.0: R_AX_HALT_C2H = 0x999 rtw89_8852cu 2-4:1.0: R_AX_SER_DBG_INFO = 0x71020010 rtw89_8852cu 2-4:1.0: [ERR]fw PC = 0x2013f55e rtw89_8852cu 2-4:1.0: [ERR]fw PC = 0x2013f55a rtw89_8852cu 2-4:1.0: [ERR]fw PC = 0x2013f55a rtw89_8852cu 2-4:1.0: [ERR]fw PC = 0x2013f55e rtw89_8852cu 2-4:1.0: [ERR]fw PC = 0x2013f55e rtw89_8852cu 2-4:1.0: [ERR]fw PC = 0x2013f55e rtw89_8852cu 2-4:1.0: [ERR]fw PC = 0x2013f55a rtw89_8852cu 2-4:1.0: [ERR]fw PC = 0x2013f55e rtw89_8852cu 2-4:1.0: [ERR]fw PC = 0x2013f55a rtw89_8852cu 2-4:1.0: [ERR]fw PC = 0x2013f55e rtw89_8852cu 2-4:1.0: [ERR]fw PC = 0x2013f554 rtw89_8852cu 2-4:1.0: [ERR]fw PC = 0x2013f556 rtw89_8852cu 2-4:1.0: [ERR]fw PC = 0x2013f55a rtw89_8852cu 2-4:1.0: [ERR]fw PC = 0x2013f55a rtw89_8852cu 2-4:1.0: [ERR]fw PC = 0x2013f55e rtw89_8852cu 2-4:1.0: ---> err=0x999 rtw89_8852cu 2-4:1.0: R_AX_SER_DBG_INFO =0x71020010 rtw89_8852cu 2-4:1.0: R_AX_SER_DBG_INFO =0x71020010 rtw89_8852cu 2-4:1.0: DBG Counter 1 (R_AX_DRV_FW_HSK_4)=0x00000000 rtw89_8852cu 2-4:1.0: DBG Counter 2 (R_AX_DRV_FW_HSK_5)=0x00000000 rtw89_8852cu 2-4:1.0: R_AX_DMAC_ERR_ISR=0x00000000 rtw89_8852cu 2-4:1.0: R_AX_DMAC_ERR_IMR=0x00000000 rtw89_8852cu 2-4:1.0: R_AX_CMAC_ERR_ISR [0]=0x00000000 rtw89_8852cu 2-4:1.0: R_AX_CMAC_FUNC_EN [0]=0xf000803f rtw89_8852cu 2-4:1.0: R_AX_CK_EN [0]=0xffffffff rtw89_8852cu 2-4:1.0: R_AX_CMAC_ERR_IMR [0]=0x00000000 rtw89_8852cu 2-4:1.0: [CMAC] : CMAC1 not enabled Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com> Link: https://patch.msgid.link/3904dd9f-2178-41e5-95c2-7a9f6268e935@gmail.com
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.