https://bugzilla.kernel.org/show_bug.cgi?id=215361 --- Comment #4 from Ross Maynard (bids.7405@xxxxxxxxxxx) --- Hi Greg, 1. I tried connecting the SL-6000 in kernel 5.14.10, but got the same error: usb 1-1: New USB device found, idVendor=04dd, idProduct=9032, bcdDevice= 0.00 usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 1-1: Product: SL-6000 usb 1-1: Manufacturer: Sharp usb 1-1: bad CDC descriptors usbcore: registered new interface driver cdc_ether As a side note, I also tried it with my SL-5600 with the same result. 2. The latest kernel I could find that would connect my Zaurus was 2.6.38. I did get the "bad CDC descriptors" message, but the zaurus module loaded anyway: usb 1-1: bad CDC descriptors usbcore: registered new interface driver cdc_ether zaurus 1-1:1.0: usb0: register 'zaurus' at usb-0000:00:14.0-1, pseudo-MDLM (BLAN) device, ea:30:12:ff:59:20 usbcore: registered new interface driver zaurus 3. I then tested with kernel 3.0. That did not work, and the zaurus module did not load: usb 1-1: new full speed USB device number 4 using xhci_hcd usb 1-1: bad CDC descriptors usbcore: registered new interface driver cdc_ether I am wondering if there was a change in the cdc_ether or zaurus modules that caused it to stop working in 3.0. On 20/12/21 7:37 pm, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=215361 > > --- Comment #3 from Greg Kroah-Hartman (greg@xxxxxxxxx) --- > On Sun, Dec 19, 2021 at 06:14:00AM +0000, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx > wrote: >> A 'bad CDC descriptors' error occurs when plugging the Sharp SL-6000 zaurus >> into USB. It was working in 2.6.32 but has been broken from kernel 3 >> onwards. > 2.6.32 was released in 2009, and 3.0 was released in 2011. Can you > please try a more modern kernel like 5.15, or ask for support from the > vendor that is forcing you to use older kernels? > > Or, can you use 'git bisect' between the working and failing kernel > versions to track down the offending commit? > > thanks, > > greg k-h > -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
