Keshava, After you remove and replug it, I think you need to do "connect -r" to recursively reconnect drivers, then do the "map -r" to generate a new mapping.
Reconnecting drivers is standard user behavior after plug in a USB device. It is not expected to happen automatically. -Jaben > -----Original Message----- > From: edk2-devel [mailto:[email protected]] On Behalf Of > GN Keshava > Sent: Tuesday, May 30, 2017 8:35 PM > To: Carsey, Jaben <[email protected]>; [email protected] > Subject: Re: [edk2] Unmount and mount a mass storage from shell > Importance: High > > Hi Jaben, > > Thanks a lot for your input. > > As I have mentioned in previous mail, I'm facing an issue now, that, If I > reconnect my client device, the mass storage is not able to mount again > automatically. > Here is few more details. Expecting some help on this : > > I connect the the client device to UEFI host. I get the mass storage > successfully. (device is listed as Mass storage in devices command) > The client device also has serial CDC functionality (It is Linux CDC > gadget, which will enumerate as both Mass storage (FAT32) and CDC serial > com port). > To use serial port, I have developed a custom serial driver. I use VID PID > of the device in this custom driver to bind the driver to the device. I > load this driver, and I get serial port (It is listed in sermode command) > Now I refresh the mapping using map -r. Still I get the mass storage of > device, and I'm able to access it correctly. > Now I disconnect the client from host (UEFI) by unplugging the device. > When I connect the device again, I'm not able to get Mass storage if i run > map -r. But serial port will start to work fine again. > > If I run devices command, it is not shown as mass storage. but as linux > gadget. > Now if I use disconnect command, and followed by connect command to this > device with mass storage driver, I'm able to mount the mass storage and use > it. > The issue is present if I load my serial driver, which uses device's VID > PID. If I unload this driver and do the unplug-plug, I'm able to get mass > storage automatically.. > > What could be the issue? Is there any way to solve this? > > (sorry for long post, it's difficult to explain otherwise) > > Thanks again. > Regards, > Keshava > > On Tue, 30 May 2017 at 20:56 Carsey, Jaben <[email protected]> > wrote: > > > I think that you will always need to inform the UEFI Shell of the change. > > It is not designed to automatically do detection of > added/removed/changed > > devices. > > > > > > > > I think that your solution to use the code from mount makes the most > sense. > > > > > > > > -Jaben > > > > > > > > *From:* GN Keshava [mailto:[email protected]] > > *Sent:* Thursday, May 25, 2017 11:02 PM > > *To:* Carsey, Jaben <[email protected]>; [email protected] > > *Subject:* Re: [edk2] Unmount and mount a mass storage from shell > > *Importance:* High > > > > > > > > Hi Jaben, Thanks a lot for input. My necessity for unmount-mount is that, > > the USB client is a Linux storage gadget, which needs to be remounted to > > get the updated/new files created by Linux. Anyhow, now I'm doing this > > programmatically by copying mount command code from older shell. :) > > > > > > > > One more issue is that, after Linux updates some file (on client side, > > Linux will mount the same partition, save some file, and then umount the > > partition. Then if i remount the partition on Host side, when host is > > windows, i will get updated files) I will manually remove and connect the > > cable (MS device), UEFI is not able to detect the MS itself. (This issue > > observed, regardless of remount. This issue is not there on windows 10 > > host). > > > > Can you give some pointers on this? > > > > > > > > Thanks a lot, Jaben. > > > > > > > > Regards, > > > > Keshava > > > > > > > > On Thu, 25 May 2017 at 21:26 Carsey, Jaben <[email protected]> > wrote: > > > > You can "disconnect" the driver > > You can do "map -d" to delete a mapping > > > > I am unsure what your goals are for mount/unmount > > > > -Jaben > > > > > -----Original Message----- > > > From: edk2-devel [mailto:[email protected]] On Behalf Of > > > GN Keshava > > > Sent: Wednesday, May 24, 2017 10:59 PM > > > To: [email protected] > > > Subject: [edk2] Unmount and mount a mass storage from shell > > > Importance: High > > > > > > How can I unmount and mount a mass storage fs from UEFI shell? > > > > > > In older EFI shells, I can do with "mount" command. But it just does > > > "mapping" in newer shell. It doesn't actually remounting the device. > > > > > > Please help. > > > > > > thanks > > > _______________________________________________ > > > edk2-devel mailing list > > > [email protected] > > > https://lists.01.org/mailman/listinfo/edk2-devel > > > > > _______________________________________________ > edk2-devel mailing list > [email protected] > https://lists.01.org/mailman/listinfo/edk2-devel _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
