On Wed, Jun 17, 2020 at 06:02:32PM +0200, Till Dörges wrote: > Hi Alan, > > sorry for the delay. It took me a while to get back to this. > > Am 23.05.20 um 22:33 schrieb Alan Stern: > > >>>> I'm trying to get external HDDs from Sony to work under Linux with USB 3.0. > >> [...] > >>>> - PSZ-HA2T: idVendor=054c, idProduct=087d > >>>> - PSZ-HA1T: idVendor=054c, idProduct=087d > >>>> - PSZ-HA50: idVendor=054c, idProduct=087d > >>>> - PSZ-HC1T: idVendor=054c, idProduct=0c4f > >> [...] > >>>> I've also tried several of the quirk settings > >>>> (https://github.com/torvalds/linux/blob/ead751507de86d90fa250431e9990a8b881f713c/drivers/usb/storage/usb.c#L527). > > [...] > >>> Try adding an entry to the unusual_uas.h file for the device, specifying > >>> the USB_FL_NO_REPORT_OPCODES flag. > >> > >> I'm not sure I understand correctly. Do I have to compile the uas Kernel module > >> myself if I want to test a flag? > >> > >> Because with setting the f flag (via options usb-storage quirks=054c:087d:f) the > >> PSZ-HA*1*T starts behaving nicely. > >> > >> --- snip --- > >> $ cat /sys/module/usb_storage/parameters/quirks > >> 054c:087d:f,054c:0c4f:f > >> --- snip --- > >> > >> > >> The PSZ-HA*2*T, however, still doesn't work with that. > Since the device stopped working under windows, I'm guessing that it's simply broken. > > I'll try to get my hands on a new sample. > > > The PSZ-HA50 and the PSZ-HA1T work nicely when attached to USB 3.0 with this setting: > > --- snip --- > $ cat /sys/module/usb_storage/parameters/quirks > 054c:087d:u > --- snip --- > > W/o this quirk they do not work. > > > I'd be surprised if a non-broken PSZ-HA2T behaved any differently. > > So perhaps you might want to consider adding that quirk directly into the Kernel? > > > FTR, the PSZ-HC1T just worked. Okay. If you would like to write a patch for the quirk and submit it, you can. Otherwise I'll write one for you. Alan Stern
