hi Alan: 2014-06-26 23:57 GMT+08:00 Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>: > On Thu, 26 Jun 2014, loody wrote: > >> hi all: >> I try below flow: >> 1. plug in usb card reader >> 2. wait 2 seconds >> 3. plug in SD card >> >> on ubuntu PC system, the udev can get SD plug in event >> but on my embedded system, there is no udev plug event when SD plug in. >> >> Is this issue related to media change command? >> if so, should I enable kernel config or do anything in user mode program? >> >> thanks for your help in advance, > > What does usbmon show? after we enable CONFIG_SCSI_MULTI_LUN, we can udevent when SD plug in card reader. appreciate your kind help, -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
