Most of FTDI's devices have an EEPROM which records FTDI devices
configuration setting (e.g. the VID, PID, I/O config...) and user
data. FT230R chip integrates a 128-byte eeprom, FT230X a 2048-byte
eeprom...
This patch adds support for FTDI EEPROM read/write via USB control
transfers and register
2018년 6월 15일 (금) 오전 3:14, Sergei Shtylyov
님이 작성:
>
> Hello!
>
> On 06/14/2018 12:23 PM, Jaejoong Kim wrote:
>
> > Removing EXPORT_SYMBOL_GPL from kref_{put, get} since it is used
>
>I thought you removed the exports from the real kref_{get|put}(). :-)
> Your patch subject and description are
Thanks for the review it.
2018년 6월 14일 (목) 오후 11:48, Alan Stern 님이 작성:
>
> On Thu, 14 Jun 2018, Jaejoong Kim wrote:
>
> > Removing EXPORT_SYMBOL_GPL from kref_{put, get} since it is used
> > only in f_mass_storage
> >
> > Signed-off-by: Jaejoong Kim
>
> This is only a partial solution. In fact,
Hello!
On 06/14/2018 12:23 PM, Jaejoong Kim wrote:
> Removing EXPORT_SYMBOL_GPL from kref_{put, get} since it is used
I thought you removed the exports from the real kref_{get|put}(). :-)
Your patch subject and description are simply misleading the way they are
written.
> only in
On 2018-06-13 09:06, Andrzej Hajda wrote:
On 12.06.2018 19:33, Mats Karrman wrote:
Hi Andrzej,
On 2018-06-07 13:40, Andrzej Hajda wrote:
On 06.06.2018 23:36, Mats Karrman wrote:
Hello Gentlemen,
I'm trying to get my head around USB role switches in connection with Type-C
ports
and
In the code path
__usb_hcd_giveback_urb()
-> wdm_in_callback()
-> service_outstanding_interrupt()
The function service_outstanding_interrupt() will unconditionally enable
interrupts during unlock and invoke usb_submit_urb() with GFP_KERNEL.
If the HCD completes in BH (like ehci does) then
On Do, 2018-06-14 at 13:17 +0200, Sebastian Andrzej Siewior wrote:
> @@ -964,6 +975,7 @@ static void wdm_disconnect(struct usb_interface *intf)
> mutex_lock(>wlock);
> kill_urbs(desc);
> cancel_work_sync(>rxwork);
> + cancel_work_sync(>service_outs_intr);
>
On Thu, 14 Jun 2018, Jaejoong Kim wrote:
> The reference count is initialized in fsg_alloc_inst(). So if
> fsg_alloc_inst() fails, we need to add kref_put() to free an
> allocated memory.
>
> Signed-off-by: Jaejoong Kim
> ---
> drivers/usb/gadget/function/f_mass_storage.c | 1 +
> 1 file
On Thu, 14 Jun 2018, Jaejoong Kim wrote:
> fsg_common_set_num_buffers() may fail due to ENOMEM. So add
> error handling for fail case.
>
> Signed-off-by: Jaejoong Kim
> ---
> drivers/usb/gadget/function/f_mass_storage.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git
On Thu, 14 Jun 2018, Jaejoong Kim wrote:
> Removing EXPORT_SYMBOL_GPL from kref_{put, get} since it is used
> only in f_mass_storage
>
> Signed-off-by: Jaejoong Kim
This is only a partial solution. In fact, fsg_common_get() isn't used
anywhere, and fsg_common_put() is used in only one place.
+ Roger Quadros
+ Praneeth Bajjuri
Tested-by: Sam Protsenko
I've tested it on X15 board (DWC3 controller) on Android master, by
doing "adb root". Without this patch I see backtrace and kernel panic
(the same error as described in commit message). When this patch is
applied, everything works
On 2018-06-14 10:44:20 [+0200], Oliver Neukum wrote:
> On Mi, 2018-06-13 at 22:28 +0200, Sebastian Andrzej Siewior wrote:
> > On 2018-06-13 19:43:55 [+0200], Oliver Neukum wrote:
> Hi Sebastian,
Hi Oliver,
> > > I am just looking at your patch and I am wondering why
> > > wdm_in_callback() won't
Fix the directory name from 'configfs' to 'configs'.
Signed-off-by: Jaejoong Kim
---
Documentation/usb/gadget_configfs.txt | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/usb/gadget_configfs.txt
b/Documentation/usb/gadget_configfs.txt
index 635e574..b8cb38a
Removing EXPORT_SYMBOL_GPL from kref_{put, get} since it is used
only in f_mass_storage
Signed-off-by: Jaejoong Kim
---
drivers/usb/gadget/function/f_mass_storage.c | 6 ++
drivers/usb/gadget/function/f_mass_storage.h | 4
2 files changed, 2 insertions(+), 8 deletions(-)
diff --git
Hi,
This series fix a reference count for fail case, adds a error handling with
ENOMEM and also remove EXPORT_SYMBOL_GLP for kref_{put, get}.
Thanks,
jaejoong
Jaejoong Kim (3):
usb: gadget: storage: Fix reference count if fsg_alloc_inst() failed
usb: gadget: storage: Add error handling for
fsg_common_set_num_buffers() may fail due to ENOMEM. So add
error handling for fail case.
Signed-off-by: Jaejoong Kim
---
drivers/usb/gadget/function/f_mass_storage.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/function/f_mass_storage.c
The reference count is initialized in fsg_alloc_inst(). So if
fsg_alloc_inst() fails, we need to add kref_put() to free an
allocated memory.
Signed-off-by: Jaejoong Kim
---
drivers/usb/gadget/function/f_mass_storage.c | 1 +
1 file changed, 1 insertion(+)
diff --git
On Mi, 2018-06-13 at 22:28 +0200, Sebastian Andrzej Siewior wrote:
> On 2018-06-13 19:43:55 [+0200], Oliver Neukum wrote:
> >
>
> Hi Oliver,
Hi Sebastian,
> > I am just looking at your patch and I am wondering why
> > wdm_in_callback() won't just call service_outstanding_interrupt()
> > again
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