Re: [PATCH] usb gadget: remove size limitation for storage cdrom

2015-03-11 Thread Dave Young
On 03/09/15 at 10:22am, Alan Stern wrote: > On Mon, 9 Mar 2015, Dave Young wrote: > > > On 03/08/15 at 11:29am, Alan Stern wrote: > > > On Sun, 8 Mar 2015, Dave Young wrote: > > > > > > > I used usb cdrom emulation to play video dvd for my daughter, but I got > > > > below > > > > error: > > > >

Re: [PATCH] usb gadget: remove size limitation for storage cdrom

2015-03-09 Thread Alan Stern
On Mon, 9 Mar 2015, Alan Stern wrote: > > They are both iso9660 images, aren't they? So from data image point > > of view there's no difference, it is not worth to create another mode > > for dvd data. > > There's more to emulation than just the image. We have to emulate the > hardware's respon

Re: [PATCH] usb gadget: remove size limitation for storage cdrom

2015-03-09 Thread Alan Stern
On Mon, 9 Mar 2015, Dave Young wrote: > On 03/08/15 at 11:29am, Alan Stern wrote: > > On Sun, 8 Mar 2015, Dave Young wrote: > > > > > I used usb cdrom emulation to play video dvd for my daughter, but I got > > > below > > > error: > > > > > > [dave@darkstar tmp]$ cat /mnt/sr1/VIDEO_TS/VTS_01_5.

Re: [PATCH] usb gadget: remove size limitation for storage cdrom

2015-03-08 Thread Dave Young
On 03/08/15 at 11:29am, Alan Stern wrote: > On Sun, 8 Mar 2015, Dave Young wrote: > > > I used usb cdrom emulation to play video dvd for my daughter, but I got > > below > > error: > > > > [dave@darkstar tmp]$ cat /mnt/sr1/VIDEO_TS/VTS_01_5.VOB >/dev/null > > cat: /mnt/sr1/VIDEO_TS/VTS_01_5.VOB:

Re: [PATCH] usb gadget: remove size limitation for storage cdrom

2015-03-08 Thread Alan Stern
On Sun, 8 Mar 2015, Dave Young wrote: > I used usb cdrom emulation to play video dvd for my daughter, but I got below > error: > > [dave@darkstar tmp]$ cat /mnt/sr1/VIDEO_TS/VTS_01_5.VOB >/dev/null > cat: /mnt/sr1/VIDEO_TS/VTS_01_5.VOB: Input/output error > [dave@darkstar tmp]$ dmesg|tail -1 > [

[PATCH] usb gadget: remove size limitation for storage cdrom

2015-03-07 Thread Dave Young
I used usb cdrom emulation to play video dvd for my daughter, but I got below error: [dave@darkstar tmp]$ cat /mnt/sr1/VIDEO_TS/VTS_01_5.VOB >/dev/null cat: /mnt/sr1/VIDEO_TS/VTS_01_5.VOB: Input/output error [dave@darkstar tmp]$ dmesg|tail -1 [ 3349.371857] sr1: rw=0, want=8028824, limit=4607996