am3359 linux usb problem

What do you mean by "can't find the usb disk" when connect it the 2nd time? no /dev/sda1?

Please provide more info: what kernel do you use? what filesystem? and dmesg log.

and 'lsusb' output when connect the usb device the first and 2nd time as while.

Hi,Bin Liu.I used ti-sdk-am335x-evm-05.05.00.00-Linux-x86-Install.The board is design by ourselves with BeagleBone.

 I mean when the system is on, insert my U disk,system haven't any action.I can't find my U disk device use "ls command"in /dev.If i instert U disk to the board then power on ,launch,goto /dev dir use "ls",i can look my U disk named as sda1."mount" it to /mnt ,i can look everything of my U disk. So my board can't support USB Hot Plug.

 The second problem is my board can't support USB mouse.

i menuconfig the kernel to USB by http://processors.wiki.ti.com/index.php/AM335X_USB_Driver_User_Guide_04.06.00

thanks.

insert u disk before board power on like this:

[     2.070556] scsi0 : usb-storage 2-1:1.0

 [    3.140411] scsi 0:0:0:0: Direct-Access     Kingston DT 101 G2        PMAP PQ: 0 ANSI: 0 CCS

 [    3.834259] sd 0:0:0:0: [sda] 15495168 512-byte logical blocks: (7.93 GB/7.38 GiB)

 [    3.845794] sd 0:0:0:0: [sda] Write Protect is off [    3.854400] sd 0:0:0:0: [sda] No Caching mode page present

[    3.860198] sd 0:0:0:0: [sda] Assuming drive cache: write through

 [    3.877105] sd 0:0:0:0: [sda] No Caching mode page present

 [    3.882934] sd 0:0:0:0: [sda] Assuming drive cache: write through

 [    3.928680]  sda: sda1 [    3.941436] sd 0:0:0:0: [sda] No Caching mode page present

 [    3.947265] sd 0:0:0:0: [sda] Assuming drive cache: write through

 [    3.953704] sd 0:0:0:0: [sda] Attached SCSI removable disk

root@am335x-evm:~# ls /dev/

 block               ram8                tty42 bus                 ram9                tty43 char                random              tty44 console             rfkill              tty45 cpu_dma_latency     rtc                 tty46 crypto              rtc0                tty47 disk                sda                 tty48 fb                  sda1                tty49 fb0                 shm                 tty5

(i just paste some device at /dev)

root@am335x-evm:~# mount /dev/sda1 /mnt/

 root@am335x-evm:~# df -h

Filesystem                Size      Used Available Use% Mounted on

 /dev/root                 1.7G    605.9M      1.1G  36% /

 df: /mnt/.splash: No such file or directory

 none                      1.0M    144.0K    880.0K  14% /dev

tmpfs                    16.0M    556.0K     15.5M   3% /var/volatile

 tmpfs                   123.7M         0    123.7M   0% /dev/shm

 tmpfs                    16.0M         0     16.0M   0% /media/ram

 /dev/mmcblk0p1           66.6M      3.4M     63.2M   5% /media/mmcblk0p1

 /dev/mmcblk0p2            1.7G    605.9M      1.1G  36% /media/mmcblk0p2

 /dev/sda1                 7.4G      1.3G      6.0G  18% /mnt

insert u disk after the system power on and login. the system haven't any action,the /dev/sda1 can't display at /dev dir.

How is the usb controller configured on your board? in OTG or HOST mode? Please share the console log of "cat /proc/driver/musb_hdrc.<X>", where <X> is the controller in use.

Hi ,Bin Liu. thank you for your help. I found it's my mistake of my board. when i use an other board .U disk work correctly.U disk surpport Hot Plug.

Unfortunately, i insert a usb mouse ,the uart console notice to detect a usb mouse .but matrix app can't display the cursor.the usb mouse can't work.

this the log:

[  104.627960] usb 1-1: new low-speed USB device number 3 using musb-hdrc

[  104.772155] usb 1-1: New USB device found, idVendor=1bcf, idProduct=0007

[  104.779266] usb 1-1: New USB device strings: Mfr=0, Product=2, SerialNumber=0

[  104.786773] usb 1-1: Product: USB Optical Mouse

[  104.801666] input: USB Optical Mouse as /devices/platform/omap/musb-ti81xx/musb-hdrc.0/usb1/1-1/1-1:1.0/input/input1

[  104.813232] generic-usb 0003:1BCF:0007.0001: input: USB HID v1.10 Mouse [USB Optical Mouse] on usb-musb-hdrc.0-1/input0

root@am335x-evm:~#

my touch screen can work normal.

Please follow the wiki http://processors.wiki.ti.com/index.php/How_to_use_a_Mouse_instead_of_the_Touchscreen_with_Matrix to enable mouse cursor in Matrix app.

Could you please share what the hot plug issue on your board was?