Hello, Everyone, Now I have two qustions about DM6446 EVM. the First is:I want to know how the OS can detect the MMC/SD when the system is working. We know that the MMC/SD Card Detect pin is connected to the MSP430 P2.1/INCLK pin. So I want to know the reasons about it. Because on our board we directly connect the MMC/SD card-detect pin to the DM6446 GPIO pin. the following is our infomation when detecting the MMC/SD card:
probe: mmcblk0: mmc0:11d4 SD02G 1921024KiB (ro) devfs_mk_dir: invalid argument.<6> mmcblk0: p1 remove: _devfs_find_entry(): too short devfs_remove: /part1 not found, cannot remove _devfs_find_entry(): too short devfs_remove: /disc not found, cannot remove The second question is: We control the USB power on or power off with the GPIO pin of DM6446. So there is our information about the USB Storage: when usb storage probe: usb 1-1: new full speed USB device using musb_hdrc and address 2 scsi0 : SCSI emulation for USB Mass Storage devices kobject_register failed for scsi_mod (-17) kobject_register failed for usb_storage (-17) Vendor: USB NAND Model: FLASH DISK Rev: 0.20 Type: Direct-Access ANSI SCSI revision: 02 kobject_register failed for scsi_mod (-17) SCSI device sda: 256000 512-byte hdwr sectors (131 MB) sda: assuming Write Enabled sda: assuming drive cache: write through SCSI device sda: 256000 512-byte hdwr sectors (131 MB) sda: assuming Write Enabled sda: assuming drive cache: write through /dev/scsi/host0/bus0/target0/lun0: p1 Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0 when usb storage remove: usb 1-1: USB disconnect, address 2 Both of the SD card and the USB storage could be used welly, but there are some errors above. could anyone help me? Thanks. -- Best Regards! zhangshaofeng shaofeng...@gmail.com shaofeng...@hotmail.com @Xi'an JiaoTong University
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