Hello,
i have a problem with the composite gadget g_acm_ms (serial and mass
storage).
The kernel is pretty up to date : Linux 3.6.0-rc7.
The architecture is arm davinci omap-l138 on a custom board.
Using the g_mass_storage driver with:
modprobe g_mass_storage file=/mnt/userdata/gadgetfile removable=1
stall=0 ro=0
is working as expected.
Also the g_serial gadget is working.
Trying to use the g_acm_ms gadget failed:
modprobe g_acm_ms file=/mnt/userdata/gadgetfile removable=1 stall=0
ro=0
-bash-3.2# [ 1633.383021] gadget: common->fsg is NULL in fsg_setup at
534
[ 1633.388716] ------------[ cut here ]------------
[ 1633.393455] WARNING: at drivers/usb/gadget/f_mass_storage.c:380
fsg_setup+0x6c/0x164 [g_acm_ms]()
[..]
looking in the source code in drivers/usb/gadget/f_mass_storage.c
if (!fsg_is_set(fsg->common))
return -EOPNOTSUPP;
fsg->common seems not to be set up properly.
What is the way to bring up the g_acm_ms gadget, am i missing some
parameters?
Is anybody using successful this gadget, or facing the same problems?
Thank you,
Bastian Ruppert.
P.S. see the full output:
-bash-3.2# [ 1633.383021] gadget: common->fsg is NULL in fsg_setup at
534
[ 1633.388716] ------------[ cut here ]------------
[ 1633.393455] WARNING: at drivers/usb/gadget/f_mass_storage.c:380
fsg_setup+0x6c/0x164 [g_acm_ms]()
[ 1633.402312] Modules linked in: g_acm_ms dsplinkk(O) [last unloaded:
g_serial]
[ 1633.409622] [<c000d900>] (unwind_backtrace+0x0/0xf0) from
[<c00182e8>] (warn_slowpath_common+0x4c/0x64)
[ 1633.419065] [<c00182e8>] (warn_slowpath_common+0x4c/0x64) from
[<c001831c>] (warn_slowpath_null+0x1c/0x24)
[ 1633.428814] [<c001831c>] (warn_slowpath_null+0x1c/0x24) from
[<bf0868cc>] (fsg_setup+0x6c/0x164 [g_acm_ms])
[ 1633.438689] [<bf0868cc>] (fsg_setup+0x6c/0x164 [g_acm_ms]) from
[<bf087fdc>] (composite_setup+0xa70/0xbc4 [g_acm_ms])
[ 1633.449378] [<bf087fdc>] (composite_setup+0xa70/0xbc4 [g_acm_ms])
from [<c02362e0>] (musb_g_ep0_irq+0x87c/0x94c)
[ 1633.459573] [<c02362e0>] (musb_g_ep0_irq+0x87c/0x94c) from
[<c0234f30>] (musb_interrupt+0x768/0x87c)
[ 1633.468734] [<c0234f30>] (musb_interrupt+0x768/0x87c) from
[<c023a620>] (da8xx_musb_interrupt+0x160/0x218)
[ 1633.478412] [<c023a620>] (da8xx_musb_interrupt+0x160/0x218) from
[<c0054a8c>] (handle_irq_event_percpu+0x34/0x1a8)
[ 1633.488777] [<c0054a8c>] (handle_irq_event_percpu+0x34/0x1a8) from
[<c0054c54>] (handle_irq_event+0x54/0x78)
[ 1633.498623] [<c0054c54>] (handle_irq_event+0x54/0x78) from
[<c00571d8>] (handle_edge_irq+0x114/0x154)
[ 1633.507861] [<c00571d8>] (handle_edge_irq+0x114/0x154) from
[<c00546f4>] (generic_handle_irq+0x28/0x30)
[ 1633.517272] [<c00546f4>] (generic_handle_irq+0x28/0x30) from
[<c0009c54>] (handle_IRQ+0x64/0x8c)
[ 1633.526074] [<c0009c54>] (handle_IRQ+0x64/0x8c) from [<c0008fd8>]
(__irq_svc+0x38/0x84)
[ 1633.534123] [<c0008fd8>] (__irq_svc+0x38/0x84) from [<c0250650>]
(cpuidle_wrap_enter+0x54/0xac)
[ 1633.542856] [<c0250650>] (cpuidle_wrap_enter+0x54/0xac) from
[<c0250138>] (cpuidle_enter_state+0x18/0x70)
[ 1633.552448] [<c0250138>] (cpuidle_enter_state+0x18/0x70) from
[<c0250748>] (cpuidle_idle_call+0x94/0xdc)
[ 1633.561949] [<c0250748>] (cpuidle_idle_call+0x94/0xdc) from
[<c000a398>] (cpu_idle+0x78/0xe8)
[ 1633.570503] [<c000a398>] (cpu_idle+0x78/0xe8) from [<c05aa948>]
(start_kernel+0x2c8/0x330)
[ 1633.578758] ---[ end trace cd3ef2a2e2e7426f ]---
[ 1633.583830] gadget: common->fsg is NULL in fsg_setup at 534
[ 1633.589513] ------------[ cut here ]------------
[ 1633.594243] WARNING: at drivers/usb/gadget/f_mass_storage.c:380
fsg_setup+0x6c/0x164 [g_acm_ms]()
[ 1633.603100] Modules linked in: g_acm_ms dsplinkk(O) [last unloaded:
g_serial]
[ 1633.610399] [<c000d900>] (unwind_backtrace+0x0/0xf0) from
[<c00182e8>] (warn_slowpath_common+0x4c/0x64)
[ 1633.619838] [<c00182e8>] (warn_slowpath_common+0x4c/0x64) from
[<c001831c>] (warn_slowpath_null+0x1c/0x24)
[ 1633.629591] [<c001831c>] (warn_slowpath_null+0x1c/0x24) from
[<bf0868cc>] (fsg_setup+0x6c/0x164 [g_acm_ms])
[ 1633.639463] [<bf0868cc>] (fsg_setup+0x6c/0x164 [g_acm_ms]) from
[<bf087fdc>] (composite_setup+0xa70/0xbc4 [g_acm_ms])
[ 1633.650152] [<bf087fdc>] (composite_setup+0xa70/0xbc4 [g_acm_ms])
from [<c02362e0>] (musb_g_ep0_irq+0x87c/0x94c)
[ 1633.660351] [<c02362e0>] (musb_g_ep0_irq+0x87c/0x94c) from
[<c0234f30>] (musb_interrupt+0x768/0x87c)
[ 1633.669508] [<c0234f30>] (musb_interrupt+0x768/0x87c) from
[<c023a620>] (da8xx_musb_interrupt+0x160/0x218)
[ 1633.679187] [<c023a620>] (da8xx_musb_interrupt+0x160/0x218) from
[<c0054a8c>] (handle_irq_event_percpu+0x34/0x1a8)
[ 1633.689545] [<c0054a8c>] (handle_irq_event_percpu+0x34/0x1a8) from
[<c0054c54>] (handle_irq_event+0x54/0x78)
[ 1633.699385] [<c0054c54>] (handle_irq_event+0x54/0x78) from
[<c00571d8>] (handle_edge_irq+0x114/0x154)
[ 1633.708621] [<c00571d8>] (handle_edge_irq+0x114/0x154) from
[<c00546f4>] (generic_handle_irq+0x28/0x30)
[ 1633.718029] [<c00546f4>] (generic_handle_irq+0x28/0x30) from
[<c0009c54>] (handle_IRQ+0x64/0x8c)
[ 1633.726829] [<c0009c54>] (handle_IRQ+0x64/0x8c) from [<c0008fd8>]
(__irq_svc+0x38/0x84)
[ 1633.734874] [<c0008fd8>] (__irq_svc+0x38/0x84) from [<c0085254>]
(__slab_free+0x8/0x2c8)
[ 1633.742997] [<c0085254>] (__slab_free+0x8/0x2c8) from [<c05d7d7c>]
(0xc05d7d7c)
[ 1633.750301] ---[ end trace cd3ef2a2e2e74270 ]---
[ 1633.755481] gadget: common->fsg is NULL in fsg_setup at 534
[ 1633.761166] ------------[ cut here ]------------
[ 1633.765897] WARNING: at drivers/usb/gadget/f_mass_storage.c:380
fsg_setup+0x6c/0x164 [g_acm_ms]()
[ 1633.774754] Modules linked in: g_acm_ms dsplinkk(O) [last unloaded:
g_serial]
[ 1633.782060] [<c000d900>] (unwind_backtrace+0x0/0xf0) from
[<c00182e8>] (warn_slowpath_common+0x4c/0x64)
[ 1633.791506] [<c00182e8>] (warn_slowpath_common+0x4c/0x64) from
[<c001831c>] (warn_slowpath_null+0x1c/0x24)
[ 1633.801257] [<c001831c>] (warn_slowpath_null+0x1c/0x24) from
[<bf0868cc>] (fsg_setup+0x6c/0x164 [g_acm_ms])
[ 1633.811129] [<bf0868cc>] (fsg_setup+0x6c/0x164 [g_acm_ms]) from
[<bf087fdc>] (composite_setup+0xa70/0xbc4 [g_acm_ms])
[ 1633.821822] [<bf087fdc>] (composite_setup+0xa70/0xbc4 [g_acm_ms])
from [<c02362e0>] (musb_g_ep0_irq+0x87c/0x94c)
[ 1633.832018] [<c02362e0>] (musb_g_ep0_irq+0x87c/0x94c) from
[<c0234f30>] (musb_interrupt+0x768/0x87c)
[ 1633.841174] [<c0234f30>] (musb_interrupt+0x768/0x87c) from
[<c023a620>] (da8xx_musb_interrupt+0x160/0x218)
[ 1633.850851] [<c023a620>] (da8xx_musb_interrupt+0x160/0x218) from
[<c0054a8c>] (handle_irq_event_percpu+0x34/0x1a8)
[ 1633.861212] [<c0054a8c>] (handle_irq_event_percpu+0x34/0x1a8) from
[<c0054c54>] (handle_irq_event+0x54/0x78)
[ 1633.871055] [<c0054c54>] (handle_irq_event+0x54/0x78) from
[<c00571d8>] (handle_edge_irq+0x114/0x154)
[ 1633.880289] [<c00571d8>] (handle_edge_irq+0x114/0x154) from
[<c00546f4>] (generic_handle_irq+0x28/0x30)
[ 1633.889699] [<c00546f4>] (generic_handle_irq+0x28/0x30) from
[<c0009c54>] (handle_IRQ+0x64/0x8c)
[ 1633.898500] [<c0009c54>] (handle_IRQ+0x64/0x8c) from [<c0008fd8>]
(__irq_svc+0x38/0x84)
[ 1633.906529] [<c0008fd8>] (__irq_svc+0x38/0x84) from [<c02e4950>]
(__netdev_alloc_frag+0xfc/0x114)
[ 1633.915429] [<c02e4950>] (__netdev_alloc_frag+0xfc/0x114) from
[<c02e8320>] (__netdev_alloc_skb+0x44/0xe0)
[ 1633.925116] [<c02e8320>] (__netdev_alloc_skb+0x44/0xe0) from
[<c0211474>] (emac_rx_alloc+0x14/0x54)
[ 1633.934192] [<c0211474>] (emac_rx_alloc+0x14/0x54) from
[<c02129a8>] (emac_rx_handler+0x78/0x124)
[ 1633.943093] [<c02129a8>] (emac_rx_handler+0x78/0x124) from
[<c02135e0>] (__cpdma_chan_free+0xfc/0x108)
[ 1633.952431] [<c02135e0>] (__cpdma_chan_free+0xfc/0x108) from
[<c021370c>] (__cpdma_chan_process+0x120/0x154)
[ 1633.962282] [<c021370c>] (__cpdma_chan_process+0x120/0x154) from
[<c0213a3c>] (cpdma_chan_process+0x28/0x48)
[ 1633.972128] [<c0213a3c>] (cpdma_chan_process+0x28/0x48) from
[<c02123a8>] (emac_poll+0x68/0x1f4)
[ 1633.980943] [<c02123a8>] (emac_poll+0x68/0x1f4) from [<c02f23c0>]
(net_rx_action+0xa0/0x1e4)
[ 1633.989415] [<c02f23c0>] (net_rx_action+0xa0/0x1e4) from
[<c001f610>] (__do_softirq+0x90/0x148)
[ 1633.998140] [<c001f610>] (__do_softirq+0x90/0x148) from
[<c001fb28>] (irq_exit+0x44/0x9c)
[ 1634.006341] [<c001fb28>] (irq_exit+0x44/0x9c) from [<c0009c58>]
(handle_IRQ+0x68/0x8c)
[ 1634.014276] [<c0009c58>] (handle_IRQ+0x68/0x8c) from [<c0008fd8>]
(__irq_svc+0x38/0x84)
[ 1634.022324] [<c0008fd8>] (__irq_svc+0x38/0x84) from [<c0250650>]
(cpuidle_wrap_enter+0x54/0xac)
[ 1634.031056] [<c0250650>] (cpuidle_wrap_enter+0x54/0xac) from
[<c0250138>] (cpuidle_enter_state+0x18/0x70)
[ 1634.040645] [<c0250138>] (cpuidle_enter_state+0x18/0x70) from
[<c0250748>] (cpuidle_idle_call+0x94/0xdc)
[ 1634.050144] [<c0250748>] (cpuidle_idle_call+0x94/0xdc) from
[<c000a398>] (cpu_idle+0x78/0xe8)
[ 1634.058699] [<c000a398>] (cpu_idle+0x78/0xe8) from [<c05aa948>]
(start_kernel+0x2c8/0x330)
[ 1634.066951] ---[ end trace cd3ef2a2e2e74271 ]---
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