工具/软件：Linux
您好、TI：
我对 OTG 器件模式有疑问。 当我 通过 USB OTG 将 BeagleBoard 连接到计算机时、Linux 系统错误、ID 引脚已设置为高电平。 并找到未知设备。
错误日志如下所示：
root@BeagleBoard：~#[65.765930]无法在虚拟地址00000014处处理内核 NULL 指针解除引用
[65.774078] PgD = ccbac000
[65.776794][00000014]* PgD=8c194031、* Pte=00000000、* Ppte=00000000
[65.783111]内部错误：Oops：17 [#1]抢占
[65.787841]最后一个 sysfs 文件：/sys/devices/virtual/vtconsole/vtcon1/uevent
[65.794677]中链接的模块：多普勒
[65.798706] CPU：0未被污染(2.6.32 #1)
[65.803192] PC 位于 musb_interrupt+0x9ac/bbb50
[65.807739] LR 位于 musb_interrupt+0x998/bb50
[65.812316] PC：[ ] LR：[ ] PSR：60000193
[65.812316] sp：cc335e30 IP：00000009 FP：00000000
[65.823852] R10：00000000 R9：000000f0 R8：00000000
[65.829101] r7：00000009 R6：00000091 R5：00000000 R4：cc82b0e4
[65.835662] r3：00000000 r2：00000003 r1：cc82b0e4 r0：cc82b0e4
[65.842224]标志：nZCv 在模式 SVC_32 ISA ARM 段用户上关闭 FIQ 的 IRQ
[65.849456]控制：10c5387d 表：8cbac019 DAC：00000015
[65.855255]处理 MAIN_ARM (pid：487、栈限制= 0xcc3342f0)
[65.861358]堆栈：(0xcc335e30至0xcc336000)
[65.865753] 5e20：cc82b0e4 cc82b0e4 00000000 fa0ab000
[65.873962] 5e40：60000113 cc334000 cc89b480 0000005c 00000000 c064e7e0 c0619750 c0322e88
[65.882202] 5e60：c0322e28 cc89b480 cc334000 c009665c 0000005c cc89b480 00020004 c061c584
[65.890411] 5e80：0000005c cc89b480 00010004 00010003 cc334000 c0619750 0000006f c009814c
[65.898651] 5ea0：0000005c cc335fb0 cc334000 c003606c 60000113 ffffffff fa200000 c0036ac4
[65.906860] 5ec0：c0695e00 00000006 00000005 00000001 c0695e00 00000060 cc334000 000000ff
[65.915100] 5ee0：60000113 cc0d0400 c0619750 0000006f ffffff cc335f08 c029db24 c029db28
[65.923309] 5f00：60000113 ffff c0695e00 006f0002 fa06c000 c0695ea8 00000000 cc1ae480
[65.931549] 5f20：00000049 00000000 c0695e00 00000001 00000000 c029dbc0 c029db64 cc2177c0
[65.939758] 5f40：cc334000 00000000 00000049 00000000 c064e7e0 00000000 00000000 c009665c
[65.947998] 5f60：00000049 cc863c80 00010001 c061bf94 00000049 cc863c80 00000001 00000000
[65.956207] 5f80：cc334000 00000000 417ba9f0 c009814c 00000049 00000000 00000000 c003606c
[65.964416] 5fa0：a0000010 ffff fa200000 c0036cb4 01713a60 00000274 0000005a 414250d8
[65.972656] 5fc0：01713a60 0000005a 00000000 00000274 01689788 58801a40 00000000 417ba9f0
[65.980865] 5fe0：01686580 bed2f9e8 414173fc 414170bc a0000010 ffff 720b0423 12000a0d
[65.989105][ ](musb_interrupt+0x9ac/bb50)从[ ](generic_interrupt+0x60/0x98)
[65.998382][ ](generic_interrupt+0x60/0x98)、从[ ](handle_IRQ_EVENT+0xa4/0x1dc)
[66.007751][ ](handle_irq_event+0xa4/0x1dc)、来自[ ](handle_level_IRQ+0xCC/0x170)
[66.017120][ ](handle_level_IRQ+0xCC/0x170)、来自[ ](ASM_DE_IRQ+0x6c/0x8c)
[66.025878][ ](ASM_DE_IRQ+0x6c/0x8c)从[ ](_IRQ_Svc+0x44/0xa8)
[66.033905]异常堆栈(0xcc335ec0至0xcc335f08)
[66.039001] 5ec0：c0695e00 00000006 00000005 00000001 c0695e00 00000060 cc334000 000000ff
[66.047210] 5ee0：60000113 cc0d0400 c0619750 0000006f ffffff cc335f08 c029db24 c029db28
[66.055419] 5f00：60000113 ffffff
[66.058929][ ](_IRQ_Svc+0x44/0xa8)从[ ](serial8250_handle_port+0x304/0x340)
[66.068206][ ](serial8250_handle_port+0x304/0x340)从[ ](serial8250_interrupt+0x5c/0x114)
[66.078521][ ](serial8250_interrupt+0x5c/0x114)从[ ](handle_IRQ_EVENT+0xa4/0x1dc)
[66.088256][ ](handle_irq_event+0xa4/0x1dc)、来自[ ](handle_level_IRQ+0xCC/0x170)
[66.097595][ ](handle_level_IRQ+0xCC/0x170)、来自[ ](ASM_DE_IRQ+0x6c/0x8c)
[66.106353][ ](ASM_DE_IRQ+0x6c/0x8c)从[ ](_IRQ_USR+0x34/0xa0)
[66.114379]异常堆栈(0xcc335fb0至0xcc335ff8)
[66.119476] 5fa0：01713a60 00000274 0000005a 414250d8
[66.127685] 5fc0：01713a60 0000005a 00000000 00000274 01689788 58801a40 00000000 417ba9f0
[66.135925] 5fe0：01686580 bed2f9e8 414173fc 414170bc a0000010 ffffff
[66.142578]代码：e3530003 13a02000 05943078 05933018 (05d32014)
[66.149566]--[结束线迹 c727700016775243 ]--
[66.154266] Kernel 严重错误-未同步：中断中出现致命异常
[66.160675][ ](RELEDEV_RETRAC+0x0/0xcc)、从[ ](紧急+ 0x54/0x120)
[66.168945][ ](紧急+0x54/0x120)从[ ](DIE+0x274/0x2b0)
[66.176330][ ](DIE+0x274/0x2b0)从[ ](__do_kernel_FAULT+0x64/0x74)
[66.184661][ ](__do_kernel_FAULT+0x64/0x74)从[ ](DO_PAGE_FAULT+0x1c0/0x1d4)
[66.194122][ ](DO_PAGE_FAULT+0x1c0/0x1d4)从[ ](DO_DataAbort+0x30/0x98)
[66.202911][ ](Do_DataAbort+0x30/0x98)、来自[ ](_dabt_Svc+0x4c/0x60)
[66.211212]异常堆栈(0xcc335de8至0xcc335e30)
[66.216339] 5de0：cc82b0e4 cc82b0e4 00000003 00000000 cc82b0e4 00000000
[66.224578] 5e00：00000091 00000009 00000000 000000f0 00000000 00000000 00000009 cc335e30
[66.232818] 5e20：c0322c70 c0322c84 60000193 ffffff
[66.237915][ ](_dabt_Svc+0x4c/0x60)从[ ](musb_interrupt+0x9ac/bb50)
[66.246612][ ](musb_interrupt+0x9ac/bb50)从[ ](generic_interrupt+0x60/0x98)
[66.255920][ ](generic_interrupt+0x60/0x98)、从[ ](handle_IRQ_EVENT+0xa4/0x1dc)
[66.265289][ ](handle_irq_event+0xa4/0x1dc)、来自[ ](handle_level_IRQ+0xCC/0x170)
[66.274688][ ](handle_level_IRQ+0xCC/0x170)、来自[ ](ASM_DE_IRQ+0x6c/0x8c)
[66.283477][ ](ASM_DE_IRQ+0x6c/0x8c)从[ ](_IRQ_Svc+0x44/0xa8)
[66.291534]异常堆栈(0xcc335ec0至0xcc335f08)
[66.296630] 5ec0：c0695e00 00000006 00000005 00000001 c0695e00 00000060 cc334000 000000ff
[66.304870] 5ee0：60000113 cc0d0400 c0619750 0000006f ffffff cc335f08 c029db24 c029db28
[66.313110] 5f00：60000113 ffff
[66.316650][ ](_IRQ_Svc+0x44/0xa8)从[ ](serial8250_handle_port+0x304/0x340)
[66.325958][ ](serial8250_handle_port+0x304/0x340)从[ ](serial8250_interrupt+0x5c/0x114)
[66.336303][ ](serial8250_interrupt+0x5c/0x114)从[ ](handle_IRQ_EVENT+0xa4/0x1dc)
[66.346038][ ](handle_irq_event+0xa4/0x1dc)、来自[ ](handle_level_IRQ+0xCC/0x170)
[66.355407][ ](handle_level_IRQ+0xCC/0x170)、来自[ ](ASM_DE_IRQ+0x6c/0x8c)
[66.364196][ ](ASM_DE_IRQ+0x6c/0x8c)从[ ](_IRQ_USR+0x34/0xa0)
[66.372253]异常堆栈(0xcc335fb0至0xcc335ff8)
[66.377380] 5fa0：01713a60 00000274 0000005a 414250d8
[66.385620] 5fc0：01713a60 0000005a 00000000 00000274 01689788 58801a40 00000000 417ba9f0
[66.393859] 5fe0：01686580 bed2f9e8 414173fc 414170bc a0000010 ffffff
